https://www.sciencedaily.com/news/plants_animals/evolution/ Evolution. Read about natural selection in a flask and genetic variation in flowers. Consider the evolution of human social behavior, and more. en-us Thu, 24 Sep 2026 00:20:50 EDT Thu, 24 Sep 2026 00:20:50 EDT 60 https://www.sciencedaily.com/images/scidaily-logo-rss.png https://www.sciencedaily.com/news/plants_animals/evolution/ For more science news, visit ScienceDaily. https://www.sciencedaily.com/releases/2026/09/260922005712.htm Some tropical trees have evolved a clever way to survive drought by taking in carbon dioxide at night, allowing them to keep their pores closed during the hot daytime and conserve water. By comparing three Clusia species, researchers discovered that this water-saving form of photosynthesis, known as CAM, did not arise through a single evolutionary change. Instead, ancient genome duplications followed by millions of years of genetic reshuffling produced strikingly different strategies, from strong CAM to stress-triggered and hybrid forms. Wed, 23 Sep 2026 08:05:24 EDT https://www.sciencedaily.com/releases/2026/09/260922005712.htm https://www.sciencedaily.com/releases/2026/09/260922005709.htm A broken rib from Scotty, the largest known T. rex skeleton, contains an extraordinary fossilized network of blood vessels formed while the dinosaur was healing. Scientists used neutron and X-ray imaging to look inside the 66-million-year-old bone without damaging it, revealing details rarely preserved in fossils. Wed, 23 Sep 2026 22:20:36 EDT https://www.sciencedaily.com/releases/2026/09/260922005709.htm https://www.sciencedaily.com/releases/2026/09/260920222410.htm Genetic evidence has revealed a previously unknown gentoo penguin species on the remote Kerguelen Islands and shown that gentoos actually consist of four distinct species. The discovery also highlights a growing threat, as warming oceans could leave several island populations with little suitable habitat by 2050. Mon, 21 Sep 2026 23:11:46 EDT https://www.sciencedaily.com/releases/2026/09/260920222410.htm https://www.sciencedaily.com/releases/2026/09/260919031020.htm Chemical clues preserved inside fossilized T. rex teeth reveal that the dinosaur maintained a body temperature of about 97 degrees Fahrenheit, almost identical to humans. The finding provides direct evidence that the giant predator was warm-blooded, helping explain how it stayed active and survived in chilly environments as far north as Alaska. Sun, 20 Sep 2026 01:56:26 EDT https://www.sciencedaily.com/releases/2026/09/260919031020.htm https://www.sciencedaily.com/releases/2026/09/260918024816.htm A newly discovered snake from New Guinea has been named after Guns N’ Roses guitarist Slash, who has loved reptiles since childhood. Genetic testing and physical differences confirmed that the reddish-brown groundsnake, Lielaphis slashi, is a species scientists had never formally recognized before. The nonvenomous snake may use large rear teeth to catch slippery lizards and reptile eggs. Fri, 18 Sep 2026 08:07:03 EDT https://www.sciencedaily.com/releases/2026/09/260918024816.htm https://www.sciencedaily.com/releases/2026/09/260917003737.htm Scientists discovered a new frog species in the flooded forests of the western Amazon, distinguishing it from nearly identical relatives through DNA and its unique call. Adenomera varcena highlights how much Amazonian biodiversity remains hidden even as habitat loss and climate change threaten these poorly understood species. Thu, 17 Sep 2026 10:08:44 EDT https://www.sciencedaily.com/releases/2026/09/260917003737.htm https://www.sciencedaily.com/releases/2026/09/260915232128.htm A newly identified 240-million-year-old animal from Tanzania is forcing scientists to rethink the early dinosaur timeline. Dinodontosaurus isiyavamanda belongs to a group previously known only from South America, linking fossil deposits on the two continents. That connection suggests Tanzania’s supposed oldest dinosaur fossils may actually be millions of years younger than previously thought. Wed, 16 Sep 2026 09:48:08 EDT https://www.sciencedaily.com/releases/2026/09/260915232128.htm https://www.sciencedaily.com/releases/2026/09/260914102436.htm A 125-million-year-old crocodile fossil has revealed preserved skin, possible sensory organs, sophisticated respiratory structures, and an unexpected pattern on its tail. Ultraviolet light exposed alternating bands that may represent ancient camouflage, potentially preserving the oldest known coloration in a crocodylomorph. Tue, 15 Sep 2026 10:07:13 EDT https://www.sciencedaily.com/releases/2026/09/260914102436.htm https://www.sciencedaily.com/releases/2026/09/260911003852.htm Long-lived bats appear to combine powerful immune defenses with unusual strategies for eliminating damaged cells, potentially helping them avoid cancer and disease for decades. Researchers hope these genetic tricks could eventually reveal new ways to protect human health during aging. Fri, 11 Sep 2026 20:25:05 EDT https://www.sciencedaily.com/releases/2026/09/260911003852.htm https://www.sciencedaily.com/releases/2026/09/260911003849.htm A feather discovered inside 66-million-year-old fossilized dinosaur poop may help explain why modern birds survived the asteroid catastrophe. The extinct bird it came from had more primitive insulating feathers, suggesting superior plumage may have helped the ancestors of living birds endure the deadly impact winter. Fri, 11 Sep 2026 19:47:16 EDT https://www.sciencedaily.com/releases/2026/09/260911003849.htm https://www.sciencedaily.com/releases/2026/09/260909231717.htm Scientists have directly observed how two negatively charged DNA molecules can pair up despite normally repelling each other. Positively charged metal ions appear to bridge the gap, helping matching DNA helices align groove for groove like a molecular zipper. The discovery confirms a theory proposed two decades ago and could help researchers understand DNA interactions involved in cancer and other cellular processes. Wed, 09 Sep 2026 23:17:17 EDT https://www.sciencedaily.com/releases/2026/09/260909231717.htm https://www.sciencedaily.com/releases/2026/09/260909005145.htm Insects quietly hold much of the natural world together, yet conservation efforts are overlooking the tropical regions where more than 80 percent of insect species live. Monash University researchers have developed a global framework to close this gap by combining scientific studies with museum collections, local expertise, citizen science, social media records, and new technologies. Wed, 09 Sep 2026 02:30:55 EDT https://www.sciencedaily.com/releases/2026/09/260909005145.htm https://www.sciencedaily.com/releases/2026/09/260907201603.htm Scientists have identified a giant new dinosaur from Brazil that reached about 20 meters long and lived 120 million years ago. Its surprising evolutionary ties to a Spanish dinosaur suggest its ancestors crossed ancient land connections between Europe, Africa, and South America. Tue, 08 Sep 2026 08:42:29 EDT https://www.sciencedaily.com/releases/2026/09/260907201603.htm https://www.sciencedaily.com/releases/2026/09/260907201558.htm The extinct “American cheetah” was not really a cheetah at all, but a puma relative with an unexpectedly flexible lifestyle. Fossils from the Yukon suggest northern populations survived partly by eating fish, possibly including salmon, while southern cats hunted on land. Tue, 08 Sep 2026 07:58:27 EDT https://www.sciencedaily.com/releases/2026/09/260907201558.htm https://www.sciencedaily.com/releases/2026/09/260906170129.htm Scientists have found evidence that some gut bacterial populations can spread rapidly between people and across continents, suggesting the microbiome may be more transmissible than previously thought. The research also revealed hidden bacterial groups associated with aging, colorectal cancer, inflammatory bowel disease, and type 2 diabetes. Mon, 07 Sep 2026 02:34:24 EDT https://www.sciencedaily.com/releases/2026/09/260906170129.htm https://www.sciencedaily.com/releases/2026/09/260902234514.htm A newly discovered microbe living inside ancient stromatolite communities may offer a rare look at how complex life first emerged. Researchers captured the first direct images of an Asgard archaeon physically connected to a bacterium, with the two microbes appearing to exchange nutrients and other compounds. Scientists think similar partnerships billions of years ago may have helped produce the first complex cells. Thu, 03 Sep 2026 09:11:28 EDT https://www.sciencedaily.com/releases/2026/09/260902234514.htm https://www.sciencedaily.com/releases/2026/09/260902234508.htm Scientists have overturned a leading explanation for why male and female bonnethead sharks have differently shaped heads. Instead of males developing a pointed snout at maturity, both sexes actually begin with more pointed heads that become rounder with age, particularly in females. Fri, 04 Sep 2026 18:24:32 EDT https://www.sciencedaily.com/releases/2026/09/260902234508.htm https://www.sciencedaily.com/releases/2026/09/260901010719.htm Morning glories may be getting caught in an evolutionary tug-of-war between surviving climate change and attracting increasingly scarce pollinators. Over just nine years, researchers found that the plants’ rate of adaptation plunged by 96%, even though they still had plenty of genetic diversity to evolve. Thu, 03 Sep 2026 23:02:07 EDT https://www.sciencedaily.com/releases/2026/09/260901010719.htm https://www.sciencedaily.com/releases/2026/08/260831015200.htm A meter-long scorpion with massive pincers stalked ancient Britain 415 million years ago, long before forests and the better-known age of giant insects. Its surprising size and possible semi-aquatic lifestyle could reshape ideas about how early arthropods became giants. Wed, 02 Sep 2026 09:23:16 EDT https://www.sciencedaily.com/releases/2026/08/260831015200.htm https://www.sciencedaily.com/releases/2026/08/260829035221.htm Ancient footprints in Kenya reveal that eight Paranthropus boisei may have traveled together 1.4 million years ago, with some individuals reaching surprisingly large, human-like body sizes. The tracks offer a rare glimpse of their social behavior and suggest these extinct human relatives may have lived in more complex groups than previously thought. Sun, 30 Aug 2026 11:17:06 EDT https://www.sciencedaily.com/releases/2026/08/260829035221.htm https://www.sciencedaily.com/releases/2026/08/260828082347.htm Scientists have discovered seven new species of Madagascar’s elusive diamond frogs, using DNA from modern and century-old museum specimens to solve a long-running biological puzzle. The findings reveal surprising hidden diversity and could help protect these little-known amphibians as their forest habitats disappear. Sun, 30 Aug 2026 06:28:59 EDT https://www.sciencedaily.com/releases/2026/08/260828082347.htm https://www.sciencedaily.com/releases/2026/08/260827010516.htm Ancient teeth and human DNA are revealing a surprising history of insect eating. Modern humans in northern Eurasia appear to have eaten insects only occasionally, while Neanderthals may have consumed them much more regularly. Populations near the tropics also retained genes that make insect exoskeletons easier to digest. Thu, 27 Aug 2026 08:18:38 EDT https://www.sciencedaily.com/releases/2026/08/260827010516.htm https://www.sciencedaily.com/releases/2026/08/260827010455.htm Ancient fossils suggest insects conquered land through a long amphibious phase rather than making an abrupt jump from water to dry ground. A newly identified 324-million-year-old species still carried paddle-like abdominal limbs, revealing an evolutionary bridge between aquatic ancestors and modern six-legged insects. Thu, 27 Aug 2026 03:22:34 EDT https://www.sciencedaily.com/releases/2026/08/260827010455.htm https://www.sciencedaily.com/releases/2026/08/260826055500.htm DNA from a nearly 190-year-old museum specimen has helped scientists confirm a distinct Himalayan pangolin species hiding in plain sight in Nepal and northern India. The discovery could give conservationists a powerful new way to trace illegally traded pangolin scales back to the species and regions being targeted by poachers. Wed, 26 Aug 2026 08:46:59 EDT https://www.sciencedaily.com/releases/2026/08/260826055500.htm https://www.sciencedaily.com/releases/2026/08/260824065514.htm A sweeping analysis of thousands of animal genomes suggests that chromosomes do not evolve randomly but instead follow a limited number of irreversible “evolutionary highways.” These one-way genetic changes preserve clues to more than 600 million years of animal history and could even help researchers explore where evolution may head next. Tue, 25 Aug 2026 04:48:49 EDT https://www.sciencedaily.com/releases/2026/08/260824065514.htm https://www.sciencedaily.com/releases/2026/08/260823014943.htm Researchers have used AI to uncover the DNA signature of a key genetic “switch” involved in turning genes on. After analyzing about 500,000 DNA sequences, the model identified the initiator in roughly 60% of human genes. The breakthrough could help predict the effects of harmful mutations and eventually contribute to decoding the broader genetic instructions that control gene activity throughout the body. Sun, 23 Aug 2026 08:14:40 EDT https://www.sciencedaily.com/releases/2026/08/260823014943.htm https://www.sciencedaily.com/releases/2026/08/260820002450.htm Scientists have identified exceptionally rare soft tissue preserved in a 450-million-year-old crinoid fossil, more than 200 million years older than the first dinosaurs. Its delicate tube feet offer a remarkable new window into how some of Earth’s earliest reef animals lived, fed, and evolved. Thu, 20 Aug 2026 21:12:03 EDT https://www.sciencedaily.com/releases/2026/08/260820002450.htm https://www.sciencedaily.com/releases/2026/08/260820002413.htm The human family tree may be due for a major rewrite. Researchers argue that Australopithecus and Paranthropus should be folded into the genus Homo because new fossils have blurred many of the traits once used to separate them. The proposed shake-up could provide a simpler, more accurate picture of our surprisingly complicated evolutionary past. Thu, 20 Aug 2026 06:42:59 EDT https://www.sciencedaily.com/releases/2026/08/260820002413.htm https://www.sciencedaily.com/releases/2026/08/260816044842.htm Silver nanoparticles can precisely slice DNA and create longer “sticky ends,” helping genetic fragments join up to five times more efficiently than conventional methods. The breakthrough could eventually simplify the construction of large DNA sequences for gene therapies, cancer vaccines, engineered drugs, and advanced crops. Wed, 19 Aug 2026 03:46:13 EDT https://www.sciencedaily.com/releases/2026/08/260816044842.htm https://www.sciencedaily.com/releases/2026/08/260815064811.htm Scientists are searching some of Earth’s oldest rocks for tiny fossils that could reveal how simple microbial life made the extraordinary leap toward plants, animals, and other complex organisms. Solving that ancient mystery may also help determine whether complex life could emerge on worlds beyond Earth. Mon, 17 Aug 2026 08:40:17 EDT https://www.sciencedaily.com/releases/2026/08/260815064811.htm https://www.sciencedaily.com/releases/2026/08/260814235837.htm Scientists have discovered a new extinct amphibian species hiding in the fossil collections of Los Angeles’ La Brea Tar Pits. Named Spea labreae, the Ice Age spadefoot toad is an exceptionally rare find—only one other extinct Pleistocene amphibian has ever been identified in North America. Its bones had been sitting in collections since the 1950s before a researcher noticed features that set it apart from known species. Sun, 16 Aug 2026 03:33:36 EDT https://www.sciencedaily.com/releases/2026/08/260814235837.htm https://www.sciencedaily.com/releases/2026/08/260813045555.htm Fossils collected in Osaka more than 30 years ago have revealed a surprise hiding in plain sight: four previously unrecognized bones from a giant Cretaceous mosasaur. Among them is the first confirmed premaxilla—the frontmost bone of the upper jaw—ever identified in a Japanese mosasaur fossil. Even more intriguing, parts of the skull show unusual anatomical features that don’t match known mosasaurs, raising the possibility that the remains belong to an entirely new species. Sat, 15 Aug 2026 10:19:45 EDT https://www.sciencedaily.com/releases/2026/08/260813045555.htm https://www.sciencedaily.com/releases/2026/08/260813045552.htm Scientists have long thought an unusual genetic system helped ants, bees, and wasps evolve their extraordinary social colonies. A massive new analysis suggests that genetics alone can’t explain it—and the real secret may lie in other traits unique to these insects. Sat, 15 Aug 2026 09:25:46 EDT https://www.sciencedaily.com/releases/2026/08/260813045552.htm https://www.sciencedaily.com/releases/2026/08/260811053042.htm Researchers have found strong evidence that original collagen can survive inside dinosaur fossils for tens of millions of years, overturning a long-standing assumption about fossilization. The discovery could unlock hidden molecular clues about dinosaur biology, evolution, and how ancient proteins managed to survive for so long. Fri, 14 Aug 2026 05:51:50 EDT https://www.sciencedaily.com/releases/2026/08/260811053042.htm https://www.sciencedaily.com/releases/2026/08/260811011134.htm Scientists probing life’s deepest origins have uncovered evidence that the first free-living cells may have emerged not once, but twice. The findings suggest a striking possibility: life may share one ancient genetic code, yet have undergone two separate transitions into free-living existence. Wed, 12 Aug 2026 01:32:21 EDT https://www.sciencedaily.com/releases/2026/08/260811011134.htm https://www.sciencedaily.com/releases/2026/08/260810015700.htm Dogs have been shaping—and being shaped by—humans for about 15,000 years, evolving from early partners of hunter-gatherers into an astonishing range of specialized companions. Across the globe, they adapted alongside people to wildly different environments and needs, from powerful Arctic sled dogs and agile rainforest hunters to high-altitude dogs with genetic traits for surviving thin air. Some were even bred for wool, while others played important spiritual or ceremonial roles. Mon, 10 Aug 2026 01:57:00 EDT https://www.sciencedaily.com/releases/2026/08/260810015700.htm https://www.sciencedaily.com/releases/2026/08/260808235005.htm The rise of the potato in the Andes appears to have left a lasting mark on human DNA. Indigenous Peruvians carry exceptionally high numbers of a starch-digestion gene, likely because people with more copies gained an evolutionary advantage once potatoes became a staple food. The change began thousands of years before European contact, providing unusually strong evidence that diet can shape human evolution. Mon, 10 Aug 2026 07:21:53 EDT https://www.sciencedaily.com/releases/2026/08/260808235005.htm https://www.sciencedaily.com/releases/2026/08/260808234956.htm A 240-million-year-old reptile discovered in Brazil is revealing what evolution looked like just before the rise of dinosaurs and crocodiles. The small predator had unusually positioned legs that may have allowed it to move more efficiently than many earlier reptiles. Its close relatives were previously known mostly from other continents, suggesting these ancient animals spread much farther across the Triassic world than scientists realized. Mon, 10 Aug 2026 07:40:02 EDT https://www.sciencedaily.com/releases/2026/08/260808234956.htm https://www.sciencedaily.com/releases/2026/08/260807035137.htm Dinosaurs conquered the land at enormous sizes, but strangely, they almost never evolved into truly tiny animals. New research suggests that physiology alone can’t explain this missing miniature end of the dinosaur spectrum—and that early mammals may have been partly responsible. While dinosaurs kept mammals from becoming large, small mammals may have returned the favor by occupying ecological niches that could otherwise have supported mouse-sized dinosaurs. Sun, 09 Aug 2026 06:15:11 EDT https://www.sciencedaily.com/releases/2026/08/260807035137.htm https://www.sciencedaily.com/releases/2026/08/260805082455.htm Millions of sperm do not always compete alone—some species send them into action as coordinated teams. A sweeping evolutionary study found that this cooperation is widespread among arthropods and has repeatedly emerged and vanished over hundreds of millions of years. The discovery challenges the classic “fastest sperm wins” story and could influence future fertility research and pest-control strategies. Thu, 06 Aug 2026 02:25:07 EDT https://www.sciencedaily.com/releases/2026/08/260805082455.htm https://www.sciencedaily.com/releases/2026/08/260804034644.htm A spectacular fossil site in Canada contains 567-million-year-old creatures that may represent some of the earliest animals to move, reproduce sexually, and develop recognizable body plans. The discovery pushes key evolutionary milestones back by up to 10 million years and suggests complex animal life may have first flourished in the deep ocean. Wed, 05 Aug 2026 20:33:35 EDT https://www.sciencedaily.com/releases/2026/08/260804034644.htm https://www.sciencedaily.com/releases/2026/08/260804034619.htm An exceptionally preserved snake fossil from Brazil reveals that early snakes were far more diverse than scientists once thought. Detailed brain reconstructions show that Tametara mirim was adapted for burrowing, while another ancient snake was suited to life above ground. Other fossils point to marine lifestyles as well. By 80 million years ago, snakes were already experimenting with very different habitats and sensory systems. Wed, 05 Aug 2026 07:42:51 EDT https://www.sciencedaily.com/releases/2026/08/260804034619.htm https://www.sciencedaily.com/releases/2026/08/260803080906.htm A tiny 518-million-year-old sea creature has revealed the earliest known evidence of the structures that eventually became spiders’ fangs. Hidden inside the fossil were pincerlike limbs and preserved soft tissues that help explain how the ancestors of spiders and scorpions evolved into formidable hunters. Tue, 04 Aug 2026 09:18:10 EDT https://www.sciencedaily.com/releases/2026/08/260803080906.htm https://www.sciencedaily.com/releases/2026/08/260801093740.htm A massive crocodilian capable of attacking dinosaurs has been brought back to life as the first scientifically accurate mounted skeleton of Deinosuchus schwimmeri. The 31-foot replica at Georgia’s Tellus Science Museum was built from detailed fossil scans and more than 40 years of research by paleontologist Dr. David Schwimmer, for whom the species was named. Wed, 05 Aug 2026 06:50:56 EDT https://www.sciencedaily.com/releases/2026/08/260801093740.htm https://www.sciencedaily.com/releases/2026/07/260731034139.htm Modern humans carry DNA from two mysterious extinct lineages in addition to Neanderthals and Denisovans. Their hidden genetic legacy shows that our evolutionary past was shaped by repeated mixing among many different human groups. Fri, 31 Jul 2026 21:58:37 EDT https://www.sciencedaily.com/releases/2026/07/260731034139.htm https://www.sciencedaily.com/releases/2026/07/260729051537.htm More than 150 years after Darwin’s finches helped reshape biology, Galápagos plants are exposing another evolutionary surprise. Giant daisies repeatedly developed similar heat-tolerant leaf shapes, but each lineage used a different combination of genes. Researchers also found major genetic differences among isolated populations, suggesting new species may be forming right now. Thu, 30 Jul 2026 08:13:37 EDT https://www.sciencedaily.com/releases/2026/07/260729051537.htm https://www.sciencedaily.com/releases/2026/07/260729051519.htm Ant parenting may have evolved from the same brain systems that once controlled hunger. Researchers found that two chemical signals push clonal raider ants toward either caring for larvae or leaving to forage, with the balance changing as the ants grow older. Similar signals are involved in mammalian caregiving, suggesting that evolution may have followed the same basic blueprint across very different animals. Sat, 01 Aug 2026 09:01:54 EDT https://www.sciencedaily.com/releases/2026/07/260729051519.htm https://www.sciencedaily.com/releases/2026/07/260729010732.htm A fossil overlooked for nearly 80 years has revealed a previously unknown crocodile relative that lived 210 million years ago in what is now New Mexico. Named Eosphorosuchus lacrimosa, the jackal-sized predator had a reinforced skull, powerful jaw muscles, and a short snout built for tackling larger prey. Thu, 30 Jul 2026 02:34:21 EDT https://www.sciencedaily.com/releases/2026/07/260729010732.htm https://www.sciencedaily.com/releases/2026/07/260729010709.htm Songbirds appear to have evolved through rare explosions of change separated by long periods of slower development. Many of those bursts lined up with major climate shifts, suggesting that environmental upheaval can reshape life in powerful ways. Wed, 29 Jul 2026 21:01:26 EDT https://www.sciencedaily.com/releases/2026/07/260729010709.htm https://www.sciencedaily.com/releases/2026/07/260727012134.htm Bumblebees naturally have short lives, but extreme heat and human activity are making survival harder. Pesticides can poison bees or destroy the flowers they depend on, while habitat loss leaves them with fewer safe places to live and feed. Protecting native plants and using fewer chemicals could help these vital pollinators recover. Wed, 29 Jul 2026 08:05:56 EDT https://www.sciencedaily.com/releases/2026/07/260727012134.htm https://www.sciencedaily.com/releases/2026/07/260726015236.htm A notorious snake invasion that devastated Guam’s native birds may have succeeded because the reptiles carried hidden genetic advantages. Using advanced long-read DNA sequencing, researchers uncovered more than 19,000 large genetic differences in brown tree snakes, many concentrated in genes tied to immunity and smell. This overlooked diversity may have helped a population founded by only a few snakes survive inbreeding, adapt to a new environment, and multiply to extraordinary densities. Sun, 26 Jul 2026 03:15:38 EDT https://www.sciencedaily.com/releases/2026/07/260726015236.htm https://www.sciencedaily.com/releases/2026/07/260723084852.htm A newly identified fossil ape from northern Egypt is reshaping ideas about where the ancestors of modern apes first emerged. Analyses place it closer to living apes than any known East African species of the same age, pointing to North Africa and the Middle East as a possible birthplace and crossroads for the ape lineage that eventually produced gibbons, orangutans, gorillas, chimpanzees, and humans. Fri, 24 Jul 2026 03:03:54 EDT https://www.sciencedaily.com/releases/2026/07/260723084852.htm https://www.sciencedaily.com/releases/2026/07/260722032119.htm Fossils discovered in Japan more than two decades ago have finally been identified as a new genus and species of giant salamander. Limnospondylus ajimuensis lived around 3.5 million years ago in a warmer, wetter Kyushu and may have reached 1.1 meters in length. Its discovery hints that many more unknown giant salamanders could be hiding among fossils previously given the wrong classification. Thu, 23 Jul 2026 21:58:41 EDT https://www.sciencedaily.com/releases/2026/07/260722032119.htm https://www.sciencedaily.com/releases/2026/07/260721000847.htm Scientists studying decades of pygmy sperm whale strandings have uncovered three previously unknown types of Helicobacter bacteria hiding in the animals’ stomachs. All four infected whales showed serious digestive damage, including inflammation, ulcers, scarring, and parasite infestations, although the bacteria were not confirmed as the cause of death. Tue, 21 Jul 2026 01:10:08 EDT https://www.sciencedaily.com/releases/2026/07/260721000847.htm https://www.sciencedaily.com/releases/2026/07/260715083551.htm A major DNA study has rewritten the koala's evolutionary story, revealing that the species suffered a dramatic population collapse about 100,000 years ago, long before humans arrived in Australia. By calculating the koala's mutation rate for the first time and analyzing hundreds of genomes, researchers discovered that every living koala traces back to a small group that survived extreme climate shifts and later repopulated eastern Australia. Fri, 17 Jul 2026 05:51:10 EDT https://www.sciencedaily.com/releases/2026/07/260715083551.htm https://www.sciencedaily.com/releases/2026/07/260715083546.htm Fossils from Queensland suggest a newly recognized marsupial order may have survived in Australia for around 35 million years, rewriting part of the story of how the continent's unique mammals evolved. The discovery challenges the idea that Australia's marsupials all came from a single straightforward ancestral lineage. Sun, 19 Jul 2026 01:53:59 EDT https://www.sciencedaily.com/releases/2026/07/260715083546.htm https://www.sciencedaily.com/releases/2026/07/260712011737.htm Citizen scientists have helped researchers solve a long-standing mystery about how parental care evolved in harvestmen. Using photos and observations from iNaturalist, scientists more than doubled the known cases of egg-guarding behavior and discovered that maternal and paternal care followed different evolutionary paths. The project, completed in just days with help from public data, shows how citizen science is transforming biological research on a global scale. Sun, 12 Jul 2026 19:49:47 EDT https://www.sciencedaily.com/releases/2026/07/260712011737.htm https://www.sciencedaily.com/releases/2026/07/260709160637.htm Scientists have discovered a previously unknown fossil goose that challenges a decades-old theory about the evolution of New Zealand's birds. The find suggests the country's giant flightless geese evolved from much more recent arrivals, revealing a far more dynamic evolutionary history than once believed. Fri, 10 Jul 2026 21:57:14 EDT https://www.sciencedaily.com/releases/2026/07/260709160637.htm https://www.sciencedaily.com/releases/2026/07/260709160627.htm A newly discovered Happy-Face spider in the Himalayas closely resembles Hawaii's iconic species but evolved independently, according to DNA evidence. Its mysterious smile-like markings, many color forms, and unexpected link to ginger plants have scientists eager to learn how the two distant species are connected. Thu, 09 Jul 2026 16:56:57 EDT https://www.sciencedaily.com/releases/2026/07/260709160627.htm https://www.sciencedaily.com/releases/2026/06/260625060216.htm A stunning fossil discovery shows that ancient bees used the empty tooth sockets of mammal bones as tiny nests after owls scattered the bones across a cave floor 20,000 years ago. It's the first known evidence of bees nesting inside animal bones, revealing an astonishingly creative survival strategy. Sun, 05 Jul 2026 15:23:32 EDT https://www.sciencedaily.com/releases/2026/06/260625060216.htm