Best of the rest Research roundup: 7 stories we almost missed Also: drumming chimpanzees, picking styles of two jazz greats, and an ancient underground city's soundscape Jennifer Ouellette – May 31, 2025 5:37 pm | 4 Time lapse photos show a new ping-pong-playing robot performing a top spin. Credit: David Nguyen, Kendrick Cancio and Sangbae Kim Time lapse photos show a new ping-pong-playing robot performing a top spin. Credit: David Nguyen, Kendrick Cancio and Sangbae Kim Story text Size Small Standard Large Width * Standard Wide Links Standard Orange * Subscribers only   Learn more It's a regrettable reality that there is never time to cover all the interesting scientific stories we come across each month. In the past, we've featured year-end roundups of cool science stories we (almost) missed. This year, we're experimenting with a monthly collection. May's list includes a nifty experiment to make a predicted effect of special relativity visible; a ping-pong playing robot that can return hits with 88 percent accuracy; and the discovery of the rare genetic mutation that makes orange cats orange, among other highlights. Special relativity made visible Credit: TU Wien Perhaps the most well-known feature of Albert Einstein's special theory of relativity is time dilation and length contraction. In 1959, two physicists predicted another feature of relativistic motion: an object moving near the speed of light should also appear to be rotated. It's not been possible to demonstrate this experimentally, however—until now. Physicists at the Vienna University of Technology figured out how to reproduce this rotational effect in the lab using laser pulses and precision cameras, according to a paper published in the journal Communications Physics. They found their inspiration in art, specifically an earlier collaboration with an artist named Enar de Dios Rodriguez, who collaborated with VUT and the University of Vienna on a project involving ultra-fast photography and slow light. For this latest research, they used objects shaped like a cube and a sphere and moved them around the lab while zapping them with ultrashort laser pulses, recording the flashes with a high-speed camera. Getting the timing just right effectively yields similar results to a light speed of 2 m/s. After photographing the objects many times using this method, the team then combined the still images into a single image. The results: the cube looked twisted and the sphere's North Pole was in a different location—a demonstration of the rotational effect predicted back in 1959. DOI: Communications Physics, 2025. 10.1038/s42005-025-02003-6  (About DOIs). Drumming chimpanzees A chimpanzee feeling the rhythm. Credit: Current Biology/Eleuteri et al., 2025. Chimpanzees are known to "drum" on the roots of trees as a means of communication, often combining that action with what are known as "pant-hoot" vocalizations (see above video). Scientists have found that the chimps' drumming exhibits key elements of musical rhythm much like humans, according to  a paper published in the journal Current Biology—specifically non-random timing and isochrony. And chimps from different geographical regions have different drumming rhythms. Back in 2022, the same team observed that individual chimps had unique styles of "buttress drumming," which served as a kind of communication, letting others in the same group know their identity, location, and activity. This time around they wanted to know if this was also true of chimps living in different groups and whether their drumming was rhythmic in nature. So they collected video footage of the drumming behavior among 11 chimpanzee communities across six populations in East Africa (Uganda) and West Africa (Ivory Coast), amounting to 371 drumming bouts. Their analysis of the drum patterns confirmed their hypothesis. The western chimps drummed in regularly spaced hits, used faster tempos, and started drumming earlier during their pant-hoot vocalizations. Eastern chimps would alternate between shorter and longer spaced hits. Since this kind of rhythmic percussion is one of the earliest evolved forms of human musical expression and is ubiquitous across cultures, findings such as this could shed light on how our love of rhythm evolved. DOI: Current Biology, 2025. 10.1016/j.cub.2025.04.019  (About DOIs). Distinctive styles of two jazz greats Jazz lovers likely need no introduction to Joe Pass and Wes Montgomery, 20th century guitarists who influenced generations of jazz musicians with their innovative techniques. Montgomery, for instance, didn't use a pick, preferring to pluck the strings with his thumb—a method he developed because he practiced at night after working all day as a machinist and didn't want to wake his children or neighbors. Pass developed his own range of picking techniques, including fingerpicking, hybrid picking, and "flat picking." Chirag Gokani and Preston Wilson, both with Applied Research Laboratories and the University of Texas, Austin, greatly admired both Pass and Montgomery and decided to explore the underlying the acoustics of their distinctive playing, modeling the interactions of the thumb, fingers, and pick with a guitar string. They described their research during a meeting of the Acoustical Society of America in New Orleans, LA. Among their findings: Montgomery achieved his warm tone by playing closer to the bridge and mostly plucking at the string. Pass's rich tone arose from a combination of using a pick and playing closer to the guitar neck. There were also differences in how much a thumb, finger, and pick slip off the string:  use of the thumb (Montgomery) produced more of a "pluck" compared to the pick (Pass), which produced more of a "strike." Gokani and Wilson think their model could be used to synthesize digital guitars with a more realistic sound, as well as helping guitarists better emulate Pass and Montgomery. Sounds of an ancient underground city Credit: Sezin Nas Turkey is home to the underground city Derinkuyu, originally carved out inside soft volcanic rock around the 8th century BCE. It was later expanded to include four main ventilation channels (and some 50,000 smaller shafts) serving seven levels, which could be closed off from the inside with a large rolling stone. The city could hold up to 20,000 people and it  was connected to another underground city, Kaymakli, via tunnels. Derinkuyu helped protect Arab Muslims during the Arab-Byzantine wars, served as a refuge from the Ottomans in the 14th century, and as a haven for Armenians escaping persecution in the early 20th century, among other functions. The tunnels were rediscovered in the 1960s and about half of the city has been open to visitors since 2016. The site is naturally of great archaeological interest, but there has been little to no research on the acoustics of the site, particularly the ventilation channels—one of Derinkuyu's most unique features, according to Sezin Nas, an architectural acoustician at Istanbul Galata University in Turkey.  She gave a talk at a meeting of the Acoustical Society of America in New Orleans, LA, about her work on the site's acoustic environment. Nas analyzed a church, a living area, and a kitchen, measuring sound sources and reverberation patterns, among other factors, to create a 3D virtual soundscape. The hope is that a better understanding of this aspect of Derinkuyu could improve the design of future underground urban spaces—as well as one day using her virtual soundscape to enable visitors to experience the sounds of the city themselves. MIT's latest ping-pong robot Robots playing ping-pong have been a thing since the 1980s, of particular interest to scientists because it requires the robot to combine the slow, precise ability to grasp and pick up objects with dynamic, adaptable locomotion. Such robots need high-speed machine vision, fast motors and actuators, precise control, and the ability to make accurate predictions in real time, not to mention being able to develop a game strategy. More recent designs use AI techniques to allow the robots to "learn" from prior data to improve their performance. MIT researchers have built their own version of a ping-pong playing robot, incorporating a lightweight design and the ability to precisely return shots. They built on prior work developing the Humanoid, a small bipedal two-armed robot—specifically, modifying the Humanoid's arm by adding an extra degree of freedom to the wrist so the robot could control a ping-pong paddle. They tested their robot by mounting it on a ping-pong table and lobbing 150 balls at it from the other side of the table, capturing the action with high-speed cameras. The new bot can execute three different swing types (loop, drive, and chip) and during the trial runs it returned the ball with impressive accuracy across all three types: 88.4 percent, 89.2 percent, and 87.5 percent, respectively. Subsequent tweaks to theirrystem brought the robot's strike speed up to 19 meters per second (about 42 MPH), close to the 12 to 25 meters per second of advanced human players. The addition of control algorithms gave the robot the ability to aim. The robot still has limited mobility and reach because it has to be fixed to the ping-pong table but the MIT researchers plan to rig it to a gantry or wheeled platform in the future to address that shortcoming. Why orange cats are orange Credit: Astropulse/CC BY-SA 3.0 Cat lovers know orange cats are special for more than their unique coloring, but that's the quality that has intrigued scientists for almost a century. Sure, lots of animals have orange, ginger, or yellow hues, like tigers, orangutans, and golden retrievers. But in domestic cats that color is specifically linked to sex. Almost all orange cats are male. Scientists have now identified the genetic mutation responsible and it appears to be unique to cats, according to a paper published in the journal Current Biology. Prior work had narrowed down the region on the X chromosome most likely to contain the relevant mutation. The scientists knew that females usually have just one copy of the mutation and in that case have tortoiseshell (partially orange) coloring, although in rare cases, a female cat will be orange if both X chromosomes have the mutation. Over the last five to ten years, there has been an explosion in genome resources (including complete sequenced genomes) for cats which greatly aided the team's research, along with taking additional DNA samples from cats at spay and neuter clinics. From an initial pool of 51 candidate variants, the scientists narrowed it down to three genes, only one of which was likely to play any role in gene regulation: Arhgap36. It wasn't known to play any role in pigment cells in humans, mice, or non-orange cats. But orange cats are special; their mutation (sex-linked orange) turns on Arhgap36 expression in pigment cells (and only pigment cells), thereby interfering with the molecular pathway that controls coat color in other orange-shaded mammals. The scientists suggest that this is an example of how genes can acquire new functions, thereby enabling species to better adapt and evolve. DOI: Current Biology, 2025. 10.1016/j.cub.2025.03.075  (About DOIs). Not a Roman "massacre" after all Credit: Martin Smith In 1936, archaeologists excavating the Iron Age hill fort Maiden Castle in the UK unearthed dozens of human skeletons, all showing signs of lethal injuries to the head and upper body—likely inflicted with weaponry. At the time, this was interpreted as evidence of a pitched battle between the Britons of the local Durotriges tribe and invading Romans. The Romans slaughtered the native inhabitants, thereby bringing a sudden violent end to the Iron Age. At least that's the popular narrative that has prevailed ever since in countless popular articles, books, and documentaries. But a paper published in the Oxford Journal of Archaeology calls that narrative into question. Archaeologists at Bournemouth University have re-analyzed those burials, incorporating radiocarbon dating into their efforts. They concluded that those individuals didn't die in a single brutal battle. Rather, it was Britons killing other Britons over multiple generations between the first century BCE and the first century CE—most likely in periodic localized outbursts of violence in the lead-up to the Roman conquest of Britain. It's possible there are still many human remains waiting to be discovered at the site, which could shed further light on what happened at Maiden Castle. DOI: Oxford Journal of Archaeology, 2025. 10.1111/ojoa.12324  (About DOIs). Jennifer Ouellette Senior Writer Jennifer Ouellette Senior Writer Jennifer is a senior writer at Ars Technica with a particular focus on where science meets culture, covering everything from physics and related interdisciplinary topics to her favorite films and TV series. Jennifer lives in Baltimore with her spouse, physicist Sean M. Carroll, and their two cats, Ariel and Caliban. 4 Comments

Researchers used the popular gene-editing technique CRISPR to modify the DNA sequences of house spiders, causing them to produce red fluorescent silk.Scientists are hoping that the US Navy and Air Force-funded research could lead to the development of new "supermaterials" produced by arachnids, Fast Company reports.As detailed in a paper published in the journal Angewandte Chemie, a team of researchers at the University of Bayreuth in Germany injected the eggs of unfertilized female spiders with a CRISPR-Cas9 solution to insert a gene sequence for a red fluorescent protein. After mating with males of the same species, the offspring produced red, fluorescent silk, demonstrating that the experiment had been successful."Considering the wide range of possible applications, it is surprising that there have been no studies to date using CRISPR-Cas9 in spiders," said senior author and University of Bayreuth professor Thomas Scheibel in a statement. "We have demonstrated, for the first time worldwide, that CRISPR-Cas9 can be used to incorporate a desired sequence into spider silk proteins, thereby enabling the functionalisation of these silk fibres."Apart from turning their silk bright red, the researchers also attempted to knock out a gene called sine oculis, which is responsible for the development of spider eyes. They found that the gene edit caused total or partial eye loss in experiments, highlighting its important role in visual development.By applying CRISPR-Cas9, a technique that has already been widely used to create custom medical treatments or make farm animals more resilient to diseases, the researchers are hoping to come up with a new generation of silk fibers."Successful spider silk engineering in vivo will, therefore, help to develop and employ new fiber functionalities for a broad range of applications," the team wrote in its paper. "So far, genetic modifications in spiders have been only aimed at evolutionary and developmental research."As Fast Company points out, materials scientists have already been investigating the tactile strength of the silk produced by gene-modified silkworms. But thanks to cutting-edge gene-editing techniques, researchers could soon harness the unique advantages of spider silk as well.While the researchers didn't single out specific use cases for future "supermaterials," the possible applications are practically endless, from lightweight body armor to ultralight running shoes."The ability to apply CRISPR gene-editing to spider silk is very promising for materials science research — for example, it could be used to further increase the already high tensile strength of spider silk," Scheibel explained.Share This Article

Cicadas are back at it again in 2025, already emerging in droves to announce the approach of summer with their screeches. If you live in the Eastern U.S., get ready to meet (and hear) Brood XIV (14), this year’s batch of periodical cicadas. Cicadas in Brood XIV have begun to pop up in multiple states, climbing out of the underground holes that they’ve spent the last 17 years in. Now, they’ll dedicate the entire month of June to mating and laying eggs before dying. Learn more about the lives of these noisy insects and what makes Brood XIV so noteworthy. Cicadas From South to NorthPeriodical cicadas consist of seven species, falling under 15 broods that either emerge every 13 or 17 years. They’re not the same as annual cicadas, which arrive every summer in much smaller numbers and don’t have the same synchronized development.Most years, one brood of periodical cicadas makes an appearance above ground. However, 2024 was an extraordinary year for cicadas because two adjacent broods (XIII and XIX) overlapped. The rare double-brood event was a must-see, since the next double-brood won’t occur until 2037 (IX and XIX will emerge together, but they aren’t adjacent). This year’s Brood XIV — a 17-year brood — won’t bring as much cicada chaos as last year, but its range is undoubtedly impressive. Cicadas will appear mostly in the Midwest and South, with a large swath concentrated from southern Ohio, down through Kentucky, and Tennessee. Their prevalence in Kentucky has led some to designate Brood XIV as the “Bourbon Brood”.Cicadas in Brood XIV will also appear as far south as northern Georgia and as far north as Long Island, New York, and Cape Cod, Massachusetts. Brood XIV is notable for being the second largest brood after XIX, a 13-year brood referred to as “The Great Southern Brood." Brood XIV is also considered to be the ancestral group from which all other 17-year broods have been shaped. This brood holds a special place in history, as its forebears were first recorded by the Pilgrims in the Plymouth Colony in 1634. Understanding the Cicada Lifecycle Cicadas in Brood XIV were last seen above ground in 2008; the ones that lived back then laid the eggs that have now become the fully-fledged cicadas emerging this year. The cicada life cycle starts when eggs that are located underground hatch into nymphs, which eat fluid from the roots of trees. The nymphs undergo five juvenile stages over the course of years, molting with each stage. They eventually crawl out of exit tunnels and find a spot to molt one final time, marking the start of adulthood. Once the adult cicadas’ exoskeleton hardens, they then focus on mating. The males climb up trees and produce their shrill songs en masse, using muscles to vibrate a rigid part of their exoskeletons called tymbals. After mating, a female cicada lays upwards of 600 eggs that will hatch after six to ten weeks, long after all of the adults have died. The newborn nymphs will then fall out of trees and burrow underground to begin the cycle anew. The Issue with Stragglers Tracking and mapping periodical cicadas of each brood is an ongoing process that needs updating nearly every year. The majority of broods come out on time, but it turns out that not all cicadas are flawless in their timekeeping.One factor that complicates tracking efforts is the existence of stragglers, cicadas that emerge earlier or later than their brood is supposed to. Stragglers that arrive at the wrong time could potentially mix with separate, adjacent broods, causing gene flow. For example, the concern this year is that previous broods could have stragglers that appear late and intermingle with Brood XIV. These stragglers could come from Brood X, which last emerged 4 years ago (and stragglers tend to emerge 1 or 4 years after their parent brood). There usually aren’t many stragglers for any given year, and they’re often picked out quickly by predators. However, some survive and influence nearby broods that emerge on time, which can throw off the data that scientists collect. Beyond the inevitable racket that they’ll create, cicadas are entirely harmless. They don’t bite or sting, but at the very least, be prepared for a loud month ahead. Article SourcesOur writers at Discovermagazine.com use peer-reviewed studies and high-quality sources for our articles, and our editors review for scientific accuracy and editorial standards. Review the sources used below for this article:University of Connecticut. Brood XIVArizona State University. Cicada Life CycleUniversity of Connecticut. Straggling and core 17-year broodsJack Knudson is an assistant editor at Discover with a strong interest in environmental science and history. Before joining Discover in 2023, he studied journalism at the Scripps College of Communication at Ohio University and previously interned at Recycling Today magazine.

Scientists Investigate 2.2-Million-Year-Old Tooth Enamel to Unravel the Mysteries of Ancient Human Relatives By studying proteins preserved in teeth, researchers determined the sex of four Paranthropus robustus individuals that lived in southern Africa This skull of a 1.8-million-year-old Paranthropus robustus individual was unearthed in South Africa, but it was not one of the fossils included in the study. José Braga and Didier Descouens via Wikimedia Commons under CC BY-SA 4.0 Paranthropus robustus was a prehistoric, two-legged human relative that lived in southern Africa roughly two million years ago. Scientists have unearthed various P. robustus fossils, but because of the specimens’ age, they haven’t been able to glean much from them. Now, using a novel method, researchers say they’ve determined the sex of four P. robustus individuals by studying their teeth. The new analysis, published Thursday in the journal Science, also reveals insights into the genetic diversity of the broader Paranthropus genus. For the study, the team analyzed teeth discovered in a cave at the Swartkrans paleoanthropological site in South Africa, reports Live Science’s Kristina Killgrove. Because the fossils were so old—dating to between 1.8 million and 2.2 million years ago—researchers could not recover ancient DNA from them. So, instead, they turned to the relatively new field of paleoproteomics, or the study of preserved proteins. Ancient DNA degrades over time, particularly in hot places like southern Africa. So far, scientists studying hominin remains on the continent have only been able to successfully sequence DNA from material that’s less than 20,000 years old. But proteins can survive much longer than DNA, particularly in hard tooth enamel. When they analyzed the fossilized enamel of the P. robustus teeth, the researchers were able to identify specific protein sequences found only in males. This allowed them to determine that two of the P. robustus individuals were male and two were female. They were surprised to learn that one individual, named SK 835, was male. Based on the comparatively small size of that individual’s teeth, researchers had previously thought SK 835 was female, since male hominins tend to be larger than females, on average. This marks an important finding, as it supports the idea that dental measurements are not the most reliable way to determine the sex of ancient hominins. “Paleoanthropologists have long known that our use of tooth size to estimate sex was fraught with uncertainty, but it was the best we had,” says Paul Constantino, a paleoanthropologist at Saint Michael’s College who was not involved with the research, to ScienceNews’ Bruce Bower. “Being able to accurately identify the sex of fossils using proteins will be hugely impactful.” Further analyses of the fossils’ amino acid sequences revealed that SK 835 was less closely related to the other three individuals than they were to each other. That means it’s possible SK 835 represents a different species altogether—maybe the newly proposed Paranthropus capensis. After all, the team writes in the paper, the recent description of that species shows Paranthropus diversity “is currently underestimated and needs to be investigated further.” Or, perhaps the small size of SK 835’s teeth can be explained by microevolution—variations between P. robustus groups living at different sites. Scientists say they will need to get their hands on more Paranthropus fossils from multiple places to know for certain, per Science News. Moving forward, researchers hope they can one day use paleoproteomic methods to map the entire human family tree. Right now, however, their “ability to distinguish between different species is limited by the small number of different proteins present in enamel,” three of the study authors tell Live Science in an email. Scientists are also exploring other protein-sequencing techniques that are less destructive to fossil samples than the current methods. In the meantime, they’re excited about the potential of paleoproteomics to help them learn even more about humans’ ancient ancestors. “It opens entirely new avenues for understanding our evolutionary history [in Africa],” study co-author Marc Dickinson, a chemist at the University of York in England, says in a statement. Get the latest stories in your inbox every weekday.

Jesse Armstrong loves to pull fictional stories out of reality. His universally acclaimed TV show Succession, for instance, was inspired by real-life media dynasties like the Murdochs and the Hearsts. Similarly, his newest film Mountainhead centers upon characters that share key traits with the tech world’s most powerful leaders: Elon Musk, Mark Zuckerberg, Sam Altman, and others.Mountainhead, which releases on HBO on May 31 at 8 p.m. ET, portrays four top tech executives who retreat to a Utah hideaway as the AI deepfake tools newly released by one of their companies wreak havoc across the world. As the believable deepfakes inflame hatred on social media and real-world violence, the comfortably-appointed quartet mulls a global governmental takeover, intergalactic conquest and immortality, before interpersonal conflict derails their plans.Armstrong tells TIME in a Zoom interview that he first became interested in writing a story about tech titans after reading books like Michael Lewis’ Going Infinite (about Sam Bankman-Fried) and Ashlee Vance’s Elon Musk: Tesla, SpaceX, and the Quest for a Fantastic Future, as well as journalistic profiles of Peter Thiel, Marc Andreessen, and others. He then built the story around the interplay between four character archetypes—the father, the dynamo, the usurper, and the hanger-on—and conducted extensive research so that his fictional executives reflected real ones. His characters, he says, aren’t one-to-one matches, but “Frankenstein monsters with limbs sewn together.” These characters are deeply flawed and destructive, to say the least. Armstrong says he did not intend for the film to be a wholly negative depiction of tech leaders and AI development. “I do try to take myself out of it, but obviously my sense of what this tech does and could do infuses the piece. Maybe I do have some anxieties,” he says. Armstrong contends that the film is more so channeling fears that AI leaders themselves have warned about. “If somebody who knows the technology better than anyone in the world thinks there's a 1/5th chance that it's going to wipe out humanity—and they're some of the optimists—I think that's legitimately quite unnerving,” he says. Here’s how each of the characters in Mountainhead resembles real-world tech leaders. This article contains spoilers. Venis (Cory Michael Smith) is the dynamo.Cory Michael Smith in Mountainhead Macall Polay—HBOVenis is Armstrong’s “dynamo”: the richest man in the world, who has gained his wealth from his social media platform Traam and its 4 billion users. Venis is ambitious, juvenile, and self-centered, even questioning whether other people are as real as him and his friends. Venis’ first obvious comp is Elon Musk, the richest man in the real world. Like Musk, Venis is obsessed with going to outer space and with using his enormous war chest to build hyperscale data centers to create powerful anti-woke AI systems. Venis also has a strange relationship with his child, essentially using it as a prop to help him through his own emotional turmoil. Throughout the movie, others caution Venis to shut down his deepfake AI tools which have led to military conflict and the desecration of holy sites across the world. Venis rebuffs them and says that people just need to adapt to technological changes and focus on the cool art being made. This argument is similar to those made by Sam Altman, who has argued that OpenAI needs to unveil ChatGPT and other cutting-edge tools as fast as possible in order to show the public the power of the technology. Like Mark Zuckerberg, Venis presides over a massively popular social media platform that some have accused of ignoring harms in favor of growth. Just as Amnesty International accused Meta of having “substantially contributed” to human rights violations perpetrated against Myanmar’s Rohingya ethnic group, Venis complains of the UN being “up his ass for starting a race war.”Randall (Steve Carell) is the father.Steve Carell in Mountainhead Macall Polay—HBOThe group’s eldest member is Randall, an investor and technologist who resembles Marc Andreessen and Peter Thiel in his lofty philosophizing and quest for immortality. Like Andreessen, Randall is a staunch accelerationist who believes that U.S. companies need to develop AI as fast as possible in order to both prevent the Chinese from controlling the technology, and to ostensibly ignite a new American utopia in which productivity, happiness, and health flourish. Randall’s power comes from the fact that he was Venis’ first investor, just as Thiel was an early investor in Facebook. While Andreessen pens manifestos about technological advancement, Randall paints his mission in grandiose, historical terms, using anti-democratic, sci-fi-inflected language that resembles that of the philosopher Curtis Yarvin, who has been funded and promoted by Thiel over his career. Randall’s justification of murder through utilitarian and Kantian lenses calls to mind Sam Bankman-Fried’s extensive philosophizing, which included a declaration that he would roll the dice on killing everyone on earth if there was a 51% chance he would create a second earth. Bankman-Fried’s approach—in embracing risk and harm in order to reap massive rewards—led him to be convicted of massive financial fraud. Randall is also obsessed with longevity just like Thiel, who has railed for years against the “inevitability of death” and yearns for “super-duper medical treatments” that would render him immortal. Jeff (Ramy Youssef) is the usurper.Ramy Youssef in Mountainhead Macall Polay—HBOJeff is a technologist who often serves as the movie’s conscience, slinging criticisms about the other characters. But he’s also deeply embedded within their world, and he needs their resources, particularly Venis’ access to computing power, to thrive. In the end, Jeff sells out his values for his own survival and well-being. AI skeptics have lobbed similar criticisms at the leaders of the main AI labs, including Altman—who started OpenAI as a nonprofit before attempting to restructure the company—as well as Demis Hassabis and Dario Amodei. Hassabis is the CEO of Google Deepmind and a winner of the 2024 Nobel Prize in Chemistry; a rare scientist surrounded by businessmen and technologists. In order to try to achieve his AI dreams of curing disease and halting global warning, Hassabis enlisted with Google, inking a contract in 2014 in which he prohibited Google from using his technology for military applications. But that clause has since disappeared, and the AI systems developed under Hassabis are being sold, via Google, to militaries like Israel’s. Another parallel can be drawn between Jeff and Amodei, an AI researcher who defected from OpenAI after becoming worried that the company was cutting back its safety measures, and then formed his own company, Anthropic. Amodei has urged governments to create AI guardrails and has warned about the potentially catastrophic effects of the AI industry’s race dynamics. But some have criticized Anthropic for operating similarly to OpenAI, prioritizing scale in a way that exacerbates competitive pressures. Souper (Jason Schwartzman) is the hanger-on. Jason Schwartzman in Mountainhead Macall Polay—HBOEvery quartet needs its Turtle or its Ringo; a clear fourth wheel to serve as a punching bag for the rest of the group’s alpha males. Mountainhead’s hanger-on is Souper, thus named because he has soup kitchen money compared to the rest (hundreds of millions as opposed to billions of dollars). In order to prove his worth, he’s fixated on getting funding for a meditation startup that he hopes will eventually become an “everything app.” No tech exec would want to be compared to Souper, who has a clear inferiority complex. But plenty of tech leaders have emphasized the importance of meditation and mindfulness—including Twitter co-founder and Square CEO Jack Dorsey, who often goes on meditation retreats. Armstrong, in his interview, declined to answer specific questions about his characters’ inspirations, but conceded that some of the speculations were in the right ballpark. “For people who know the area well, it's a little bit of a fun house mirror in that you see something and are convinced that it's them,” he says. “I think all of those people featured in my research. There's bits of Andreessen and David Sacks and some of those philosopher types. It’s a good parlor game to choose your Frankenstein limbs.”

News Anthropology Males of this ancient human cousin weren’t always bigger than females Proteins from a collection of fossils hint at sex and genetic differences in P. robustus A new analysis of proteins preserved in fossil teeth provides the first molecular assessment of size differences between the sexes and genetic diversity in an ancient African hominid, Paranthropus robustus (skull of own shown). Bernhard Zipfel By Bruce Bower 20 hours ago An ancient, distant human cousin from southern Africa called Paranthropus robustus has for the first time revealed molecular clues to its evolutionary status. Protein sequences preserved in four partial P. robustus teeth from different individuals that lived roughly 2 million years ago indicate that larger and smaller fossils of this hominid species cannot always be classed as male or female, as previously thought, researchers report in the May 29 Science. Sequences of a protein derived from a gene located only on the Y, or male, sex chromosome in present-day humans enabled the scientists to identify two teeth as having belonged to males, molecular biologist Palesa Madupe of the University of Copenhagen and colleagues say. One of those teeth was previously thought to have come from a female, based on its small size. Closer analyses of the two teeth lacking that male-specific protein indicated that those fossils, which are around the same size as the smaller male tooth, came from females. Sign up for our newsletter We summarize the week's scientific breakthroughs every Thursday.

When a mother is pregnant, it’s normal—dare we say expected—for her partner to make sure she is taken care of. Hornbills, however, take these great expectations to a whole new level. Hornbills are colorful birds with large beaks native to Africa and Southeast Asia. They usually mate for life, Emily Bridges, Senior Bird Care Specialist at the Jacksonville Zoo and Gardens, tells Popular Science, and have an incredibly unique nesting process.  Hornbill pairs start by identifying a tree cavity to their liking. They will then modify it by digging or adding material. It turns out they can be quite picky about what goes in their nests. At the Jacksonville Zoo, employees put pine shavings and tree bark in a tree cavity for hornbill mates named Humphrey and Bacall, “which they did not care for and threw most of it out,” Bridges admitted. “The preference for nesting materials varies from each pair and each species.”  Hornbills then start “walling,” or closing the tree cavity’s opening with materials such as soft fruit, feces, mud, and woodchips, and the female hornbill tucked inside. The birds leave a small opening in the seal through which the male can feed the female while she lays eggs and raises their chicks. Interestingly, females also poop out of the slit to keep the nest nice and clean. According to Bridges, hornbills are the only known bird species that nest in this way. [ Related: Bittersweet fledge watch begins for bald eagles Sunny and Gizmo. ] Bacall is currently sealed in, and you can check on her progress through a livecam. If her eggs hatch, she will care for the chick or chicks within the nest for somewhere between 111 to 137 days. After that nesting period, the adult birds will break the seal and continue raising their young together.   The pair (whose names are a call back to one of old Hollywood’s most prolific couples) became mates after Humphrey arrived at Jacksonville Zoo in January. The zoo staff undertook quite the matchmaking efforts. Initially, “we introduced Humphrey and Bacall through side-by-side enclosures so that they could see and hear each other,” says Bridges.  When the birds started demonstrating behaviors indicating that they liked each other, such as sitting next to each other for a long time, sharing food, and dual calling, “we introduced them together in a shared space under close monitoring at increasingly longer periods of time over a few weeks,” she adds. “We are lucky that these two seemed to be compatible quickly, as hornbills can take years to bond enough to want to nest together.” Here’s to hoping Bacall and Humphrey soon become parents!  The post Male hornbills are at their mates’ every beck and call appeared first on Popular Science.

See the First Photos and Videos of the Rare Subalpine Woolly Rat, a Massive but Elusive Rodent in New Guinea’s Mountains Working with local Indigenous people, biologist František Vejmělka spent six months surveying the creatures that live on Mount Wilhelm in Papua New Guinea Trail cameras recorded nocturnal subalpine woolly rats roaming around in search of plants to eat. Czech Academy of Sciences The subalpine woolly rat lives high in the mountains of New Guinea, where it spends its nights searching for plants to eat and its days hiding in underground burrows or tree canopies. This furry rodent is massive, measuring more than 2.5 feet from nose to tail and tipping the scales at more than four pounds. But despite its large size, the subalpine woolly rat (Mallomys istapantap) is incredibly elusive. First described in 1989, the species was only known to scientists because of a few museum specimens, and it had never been photographed in the wild—until now. František Vejmělka, a biologist at the Czech Academy of Sciences and the University of South Bohemia, spent six months exploring the highlands of Papua New Guinea. With help from local Indigenous people, he surveyed and genetically identified 61 species of rodents and marsupials found on Mount Wilhelm, a 14,793-foot peak and the country’s highest mountain. But perhaps his most significant work centered around the subalpine woolly rat. Vejmělka captured the first photos and videos of the mysterious creature in the wild. He also caught a few individuals, which allowed him to take the first biometric measurements of males and gather data about the rats’ behavior, diet and parasites. He shared his findings in a paper published April 18 in the journal Mammalia. By capturing several subalpine woolly rats, František Vejmělka was able to take the first biometric measurements of males of the species. Czech Academy of Sciences “It’s astonishing that such a large and striking animal has remained so poorly studied. How much more is there to discover about the biodiversity of tropical mountains?” Vejmělka says in a statement shared last week. The subalpine woolly rat is the biggest rodent in Australia and Oceania, and it’s one of the largest in the world. It’s a “striking and formidable creature,” with three-inch-long paws, sharp teeth and dense, shaggy fur covering most of its body, according to the statement. But these rodents are only active at night, and they live between 10,500 and 12,140 feet above sea level. Their rugged, remote habitats, coupled with their nocturnal habits, have made them difficult for researchers to study. Subalpine Woolly Rat Filmed For The First Time Watch on Vejmělka was up for the challenge. He wanted to know more about this mysterious species, as well as the mammalian diversity of New Guinea more broadly. For help, he turned to several tribes living on Mount Wilhelm. Their support and collaboration were crucial to the project, he says. The rats spend their days hiding in underground burrows or tree canopies, but they come out at night to search for food. Czech Academy of Sciences “If it weren’t for the Indigenous hunters who accompanied me in the mountains and helped me locate the animals, I would never have been able to collect this data,” he says in the statement. From trail camera footage and biometric observations, Vejmělka was able to glean several new insights into the lives of these mysterious creatures. He learned they primarily eat ferns and other plant material, for example, and that both males and females have a reddish brown color on their chests, reports IFLScience’s Eleanor Higgs. The species’ large size is likely due to “insular gigantism,” a biological phenomenon in which animals on islands evolve to become larger than those on the mainland, Vejmělka tells Live Science’s Jess Thomson in an email. Scientists think the rodents’ predecessors first arrived on New Guinea roughly five million years ago. Without much competition to worry about, they’ve been able to adapt to the rainforest landscape and thrive. “Their ancestors arrived from Asia to the island completely absent of any other terrestrial placental mammals (only marsupials and monotremes),” Vejmělka adds to Live Science. Get the latest stories in your inbox every weekday.

Clownfish Shrink Down Their Bodies to Survive Ocean Heat Waves, New Study Suggests The adaptation appears to help the fish cope with high temperatures, since individuals and breeding pairs that shrank improved their survival odds Clownfish seem to become shorter during heat waves, according to the new study. Morgan Bennett-Smith A new study reveals that clownfish use a surprising strategy to adapt their bodies to ocean heat waves: They shrink. “[Clownfish] have these amazing abilities that we still don’t know all that much about,” says study co-author Theresa Rueger, a tropical marine ecologist at Newcastle University in England, to the Washington Post’s Dino Grandoni. The findings offer some hope for fish in the face of climate change, she adds. “There’s potential that maybe some other species will adapt in a way that will allow them to hang on longer than we think.” Rueger and her team didn’t initially plan to study a heat wave. They were monitoring how freshwater runoff might affect breeding clownfish in Papua New Guinea’s Kimbe Bay, when temperatures dramatically rose and warmed the water to 7.2 degrees Fahrenheit above average. But these conditions, they realized, offered a key opportunity for research. The scientists measured 134 clownfish in Kimbe Bay every month during the ocean heat wave, which spanned from February to August 2023. Astoundingly, 100 of those fish shrank. The researchers found that 71 percent of the dominant females and 79 percent of the breeding males reduced in size at least once over the study period. Their findings were published in the journal Science Advances on Wednesday. At first, lead author Melissa Versteeg, a PhD researcher at England’s Newcastle University, thought she was making a mistake in her measurements. She kept trying again. And again. “She had several people measuring them at the same time to really make sure that we’re confident with the numbers,” Rueger says to Melissa Hobson at National Geographic. But after these repeated attempts, she concluded the measurements were correct. The fish that shrank increased their chances of surviving the heat wave by 78 percent, according to the study. Some of the clownfish even shrank in pairs, reducing their size alongside their breeding partner—a move that also boosted their chance of survival. The study marks the first time a coral reef-dwelling fish has been documented to shrink in response to environmental and social cues, according to a statement from Newcastle University. A pair of clownfish swims near an anemone. When the studied fish became smaller, females maintained a larger size than males. Morgan Bennett-Smith Clownfish aren’t the only animals shifting their size because of heat. Fish around the world are adapting to warmer temperatures by downsizing their bodies. “This is another tool in the toolbox that fish are going to use to deal with a changing world,” says Simon Thorrold, an ocean ecologist at Woods Hole Oceanographic Institution who was not involved in the new work, to Adithi Ramakrishnan at the Associated Press. But these clownfish stand out from the rest. “Until now, when talking about shrinking fish, nearly all studies do not mean that fish literally shrink but that they grow to smaller sizes,” explains Asta Audzijonyte, a senior lecturer at the University of Tasmania in Australia who was not involved in the work, to the Washington Post. “This study, in contrast, reports observations of [clownfish] actually shrinking by a few percent of their total length over the course of a month.” Previous research has found that other animals, like birds and rodents, appear to have gotten smaller because of climate change. And marine iguanas will shrink in response to warmer water temperatures during El Niño years. The researchers don’t yet know how the clownfish are pulling off their shrinking act. One hypothesis is that the fish are reabsorbing their own bone matter, reports the Associated Press. They’re also not sure why, exactly, changing size is so advantageous to the clownfish. But it could be that a smaller size makes it easier to maintain oxygen levels or get by with less food available. “If you’re small, you obviously need less food, and you’re also more efficient in foraging a lot of the time,” explains Rueger to National Geographic. Still, this adaptation method can only go so far. The heat wave exacerbated coral bleaching, which decreases available reef habitat, and subsequent heat waves ultimately killed many of the fish the researchers studied. “We’ve lost many of those fish,” Rueger says to the Washington Post. Get the latest stories in your inbox every weekday.

Not providing enough practical experience in science classes will have a direct impact on whether children work in science, technology, engineering and maths (STEM) roles in the future, research suggests. EngineeringUK and The Royal Society’s Science education tracker asked hundreds of science teachers about delivering hands-on lessons and found there has been a decline in practical classes, with teachers highlighting many of the barriers standing in the way of being able to deliver this style of teaching. “We know the frequency of hands-on practical science has dropped,” said Becca Gooch, head of research at EngineeringUK. “Our Science Education Tracker research in partnership with the Royal Society highlighted this, as well as how critically vital practical science is as a motivating factor for learning science for years seven to nine. “Hands-on practicals help bring science to life for young people and boost interest in science, as well as developing important skills,” she added. “We need more young people, especially girls, choosing to continue with science and progress into engineering and technology careers. So, we need school students to have many more opportunities to get hands-on in their science lessons.” More than half of children in years seven to nine highlighted how important practical science lessons are for motivating them to learn more about the subject, especially for students who are less interested in the topic – if there are fewer practical science lessons, it actually serves to put people off of studying the subject later on in their education. With EngineeringUK and The Royal Society reporting that a diverse engineering and tech workforce in the future is directly linked to young people engaging in science and other STEM subjects, more needs to be done to maintain an interest in these subjects into further education and beyond. One of the reasons young people, and especially girls, don’t choose tech or other STEM careers is because they don’t fully understand what they involve or what the kinds of people working in those careers look like, so hands-on lessons can help in informing young people about what skills they may use in a future career. Female students are slightly more likely to engage with a subject when there is practical work involved than their male counterparts – practical elements of learning were a motivator for 54% of female students versus half of males – and having a good teacher is also more important to girls than boys. But hands-on science lessons have been on the decline over the past 10 years, with 44% of students across the UK taking part in practical work at least once every two weeks in 2016, dropping to 37% in 2019, and falling further to just over a quarter in 2023 – and now in many cases, practical demonstrations have been replaced with videos. Teachers pointed to a number of barriers in the way of delivering hands-on lessons, the biggest of which are what is required in the curriculum, and the time they have – with the amount of time it takes for teachers to develop practical sessions that relate directly to the learning goals laid out in the curriculum, teachers said in many cases they can’t feasibly work them into their teaching. Unfortunately, a child’s socio-economic background can stand between them and certain educational pathways, and the area a school is in can prevent access to certain funding and resources. What schools are able to provide can be varied depending on funding and area, and 26% of teachers said a lack of equipment stood in the way of offering more practical lessons. Some 27% said they don’t have the money to buy the equipment. Read more about STEM in schools Computer science has a persistent gender divide, but research by BCS has found more women are now being accepted on computing university courses. Speaking at the Bett Show this year, the UK’s education secretary outlined the ways in which teachers will be using technologies such as AI in the future, including planning lessons and marking work. Almost a quarter said they don’t have enough technicians with the skills available to facilitate hands-on science lessons, and almost 40% of teachers said vacancies in science departments have stopped students from receiving practical teaching. A small number of science teachers also expressed concerns about their ability to deliver practical sessions, with 3% saying they lack the training and 2% saying they lack the confidence to do so, a trend that has existed for some time. EngineeringUK and The Royal Society pointed out that practical science lessons are important for increasing student interest in STEM, fuelling the talent pipeline in the future, and gave a number of recommendations to help enable teachers to offer more hands-on lessons. The first was a call to government to take advantage of the current curriculum review to streamline it and allow science lessons to offer more practical lessons, as well as to make practical learning part of the curriculum to ensure all students are able to experience these kinds of lessons as part of their learning. Resources for schools was the third suggestion from EngineeringUK and The Royal Society. Going forward, schools need more investment to make sure they have the equipment, training and technical assistance needed to give students the opportunity for practical lessons.