https://phys.org/ en-us Phys.org internet news portal provides the latest news on science including: Physics, Nanotechnology, Life Sciences, Space Science, Earth Science, Environment, Health and Medicine. It may sound too bizarre to be true, but the Amazon molly (Poecilia formosa), a fish that inhabits rivers, lakes, and swamps in Mexico and Texas, exists over much of its range in populations that are 100% female. In 1932, the Amazon molly became the first known vertebrate to reproduce by cloning itself, producing all-female populations. A new genetic study published in Nature has given scientists insights into the longstanding mystery about how and why this happens. https://phys.org/news/2026-05-asexual-lizards-virgin-births-clones.html Plants & Animals Fri, 22 May 2026 09:40:02 EDT news698661362 Anesthesia makes life-saving procedures as painless and stress-free as possible for the animals we love and care for. But not a lot is known about the effects of anesthesia on animals that we don't typically consider pets—like butterflies and other invertebrates. Insects are often valuable members of nature centers, zoos and museums, but even if they're just being evaluated in the wild, they can need anesthesia during physical examinations and injury treatment. https://phys.org/news/2026-05-anesthetize-butterfly.html Plants & Animals Fri, 22 May 2026 07:33:54 EDT news698652062 In many underwater ecosystems, seagrass meadows act as a food source, a safe haven, and an ecological lynchpin. But until now, very little was known about how these plants reproduce—critical information for conserving the meadows. https://phys.org/news/2026-05-seagrass-genetic-individuals-clone-underwater.html Plants & Animals Fri, 22 May 2026 00:00:01 EDT news698574842 Researchers have uncovered a remarkable fossil site in a remote part of Canada's Northwest Territories, offering unprecedented insight into the earliest evolution of complex animal life on Earth. Findings from the site represent life from the Ediacaran biota—soft-bodied organisms that lived on the seafloor more than 500 million years ago—and push back the origins of animal movement and sexual reproduction by 5–10 million years. https://phys.org/news/2026-05-discovery-fossils-northwest-canada-view.html Evolution Wed, 20 May 2026 14:00:15 EDT news698486161 A new study of the blue button (Porpita porpita), a small and elusive sea creature which lives on the surface of the ocean, has found that it may live for several years adrift at sea, much longer than previously estimated. https://phys.org/news/2026-05-tiny-sea-creature-porpita-adrift.html Plants & Animals Wed, 20 May 2026 08:40:03 EDT news698484541 You're cooking dinner, distracted, and your hand brushes a hot pan. Nerve signals race to your spinal cord and back to yank your arm away in a fraction of a second, with no thought required. https://phys.org/news/2026-05-billion-crickets-farmed-food-year.html Plants & Animals Mon, 18 May 2026 15:20:05 EDT news698324411 Most of the Bahamas' signature seafood stocks are being fished harder than the sea can replace them, according to a new paper led by Sea Around Us researchers and published in Frontiers in Marine Science. https://phys.org/news/2026-05-overfishing-bahamian-seafood-staples-years.html Ecology Mon, 18 May 2026 12:28:44 EDT news698326081 Have you ever wondered how a fly manages to dodge you in a split second? Scientists have long been fascinated by the lightning-fast reflexes that help flies escape danger almost instantly. But despite decades of research, they still don't fully understand exactly how the brain coordinates these rapid reactions at the level of individual neural connections. https://phys.org/news/2026-05-flies-dodge-fast-brain-reveals.html Plants & Animals Wed, 13 May 2026 16:00:04 EDT news697905726 More than 500 million years ago, during what is known as the Cambrian period, the seas and oceans on Earth were filled with a myriad of marine animals, many of which have now become extinct. This evolutionary burst in new forms of life, referred to as the Cambrian explosion, paved the way for the evolution of many major animal groups that still populate our planet today. https://phys.org/news/2026-05-strange-million-year-marine-fossils.html Evolution Wed, 13 May 2026 08:00:02 EDT news697721762 A reexamination of microfossils found in the Brazilian state of Mato Grosso do Sul shows that the marks previously interpreted as traces of worms or other small oceanic animals are actually communities of fossilized microscopic bacteria and algae. https://phys.org/news/2026-05-brazilian-microfossils-animal-algae-bacteria.html Cell & Microbiology Mon, 11 May 2026 19:20:03 EDT news697736042 Biologists have long puzzled over why organisms with similar numbers of protein-coding genes can differ so dramatically in nervous system complexity. New research points to a potential link between the expanding diversity of RNA-binding proteins, which shape how genetic instructions are processed, and greater brain sophistication. https://phys.org/news/2026-05-paradox-similar-genes-brains.html Evolution Mon, 11 May 2026 11:37:23 EDT news697717929 Arctic glacial fjords are hotspots of marine life, yet their seafloor environments remain some of the least explored regions on Earth. Their extreme remoteness and the technical challenges of deep-water observation have led scientists to rely on indirect measurements like sonar. However, these methods cannot visually verify animal behavior or identify specific species. https://phys.org/news/2026-05-rare-footage-elusive-sea-floor.html Plants & Animals Wed, 06 May 2026 18:50:01 EDT news697306021 In 2025, Konstanz scientists looked very closely at rotting fruit in local orchards, and observed what no one had before—worms, hundreds of them, twisting skyward into self-assembled living structures known as "towers." It was the first time anybody had seen this mysterious behavior outside of the laboratory. https://phys.org/news/2026-05-scientists-uncover-beetle-newly-towering.html Plants & Animals Mon, 04 May 2026 11:00:12 EDT news697098062 The rise in infertility is not limited to humans, as environmental stressors are quietly undermining the reproductive potential of different forms of life. A recent review published in npj Emerging Contaminants investigated how today's environmental challenges are shaping the reproductive capacity of both humans and animals. https://phys.org/news/2026-04-invisible-fertility-crisis-chemicals-climate.html Environment Tue, 28 Apr 2026 14:00:02 EDT news696602190 Today's octopuses are intelligent, remarkably flexible animals that lurk in reefs, hide in crevices, or drift through the deep sea. But new research suggests that their earliest relatives may have played a far more predatory role in ocean ecosystems. A study led by researchers at Hokkaido University has found that the earliest known octopuses were giant predators that hunted at the very top of the food web, alongside large marine vertebrates. The study is published in Science. https://phys.org/news/2026-04-giant-octopuses-oceans-million-years.html Evolution Thu, 23 Apr 2026 18:30:02 EDT news696182161 Scientists have discovered that deep-water corals in the Galapagos region vanished for more than 1,000 years before eventually recovering. The findings reveal that deep-water coral ecosystems may be more susceptible to climate change than previously thought. https://phys.org/news/2026-04-lost-millennium-galapagos-deep-sea.html Earth Sciences Mon, 20 Apr 2026 15:00:01 EDT news695633581 In a surprising new study, Australia's most famous plant-eating dinosaur has been described as a "picky eater with a nose for good food" when it roamed across the continent around 96 million years ago. After examining different parts of the skull from new bones of the large-bodied ornithopod Muttaburrasaurus langdoni, fossil experts from across Australia and the US have released several new insights in a journal article published in PeerJ. https://phys.org/news/2026-04-toothy-snout-recasts-australia-famed.html Paleontology & Fossils Tue, 14 Apr 2026 13:20:01 EDT news695385012 Tropical rainforests are home to almost two-thirds of all vertebrate species and three-quarters of all tree species: they are the most species-rich terrestrial ecosystem on Earth. However, over half of these diverse rainforests have already been cleared, and their area continues to decline drastically, primarily for agricultural purposes. Is there a chance of regeneration, and can not only trees but also the unique diversity of thousands of animal species return to cleared areas? https://phys.org/news/2026-04-ecuador-tropical-rainforest-biodiversity-rebounds.html Plants & Animals Wed, 08 Apr 2026 19:20:01 EDT news694880641 A famous 300-million-year-old fossil that was thought to be the world's oldest octopus—even featuring in the Guinness Book of Records—has turned out to be something else altogether. In what amounts to a case of mistaken identity, the fossil hid its true nature through decay 300 million years ago, before being fossilized. https://phys.org/news/2026-04-oldest-octopus-fossil-scans-reveal.html Evolution Tue, 07 Apr 2026 19:10:01 EDT news694683001 A new study published in the Biodiversity Data Journal provides a profound look at life up to nearly 10 kilometers below the ocean's surface in the Japan, Ryukyu, and Izu-Ogasawara trenches. The research catalogs at least 108 distinct organism groups (morphotaxa), including the deepest-ever observation of a fish and a baffling, unidentified animal that has left global taxonomic experts stumped. https://phys.org/news/2026-04-rich-biodiversity-japan-deepest-ocean.html Plants & Animals Tue, 07 Apr 2026 13:00:06 EDT news694776481 "It takes a village to raise a child" doesn't apply merely to humans. Many species of mammals, birds, fish, and various invertebrates have evolved complex social care systems known as cooperative breeding. In these animal societies, offspring receive attention not only from their parents but also from other group members called helpers. https://phys.org/news/2026-03-village-cooperative-lake-tanganyika-fish.html Evolution Sun, 05 Apr 2026 14:00:05 EDT news694191571 Researchers from the University of Maine, in partnership with the Maine Department of Marine Resources (DMR), are analyzing more than 20 years of fishery survey data from the Gulf of Maine to examine how environmental change is reshaping marine ecosystems. The work aims to understand how changes impact the effectiveness of long-running DMR surveys that inform fishery management. It will also provide a model for evaluating and adapting survey methods to inform effective, science-based assessment and management of culturally and economically important marine resources like lobster, herring, and shrimp. https://phys.org/news/2026-04-analysis-tracks-years-coastal-species.html Ecology Wed, 01 Apr 2026 15:00:03 EDT news694260961 It had been a long day of teaching for Rudy Lerosey-Aubril. As a reward, he returned to cleaning an intriguing Cambrian arthropod fossil he had recently received for review. At first, the specimen showed all the expected characteristics of its time—yet, something was off. In place of an antenna, there appeared to be a claw. "Claws are never in that location in a Cambrian arthropod," said Lerosey-Aubril, "It took me a few minutes to realize the obvious, I had just exposed the oldest chelicera ever found." https://phys.org/news/2026-03-million-year-clawed-predator-rewrites.html Evolution Wed, 01 Apr 2026 11:00:14 EDT news694164841 Researchers at The Hong Kong University of Science and Technology (HKUST) have developed CarGAP, a chemo-optogenetic tool that uses vitamin B₁₂ and green light to precisely control gap junctions, the microscopic channels enabling direct cell-to-cell communication. This innovation allows on-demand closing and opening of these intercellular bridges, providing unprecedented spatiotemporal control over vital molecules and electrical signals. Demonstrated in both mammalian cells and living fruit flies, CarGAP provides a powerful new way to study development, immunity, and neural activity, with far-reaching potential for understanding disease mechanisms and advancing regenerative medicine. https://phys.org/news/2026-03-chemo-optogenetic-tool-vitamin-green.html Cell & Microbiology Fri, 20 Mar 2026 17:20:01 EDT news693228894 The Indo-Pacific is the largest marine biogeographical region on Earth and a global center of marine biodiversity. Nevertheless, there are gaps remaining in our understanding of the diversity, distribution, and endemism of many animal groups in this vast area, especially in relation to sponges. This knowledge is crucial, however, to our ability to record and evaluate changes in biodiversity over the long term. https://phys.org/news/2026-03-genetic-analyses-sponge-species-indo.html Ecology Tue, 17 Mar 2026 18:10:06 EDT news692983141 The Chesapeake Bay's most popular crustacean has a dark streak. Cannibalism is the No. 1 killer of juvenile blue crabs in mid-salinity waters where they are known to congregate, according to a new study from the Smithsonian Environmental Research Center (SERC) published in the journal Proceedings of the National Academy of Science. But shallow waters can offer a vital refuge. https://phys.org/news/2026-03-cannibalism-major-young-blue-crabs.html Plants & Animals Mon, 16 Mar 2026 15:00:01 EDT news692610481 The European flat oyster (Ostrea edulis) was once widespread in the North Sea. However, overfishing, habitat destruction and infectious diseases pushed the species to the brink of extinction in some regions nearly one hundred years ago. In particular, infections with the pathogen Bonamia ostreae have caused repeated major losses since the 1970s. The parasite infects the oysters' immune cells and initially causes no symptoms, but after several months the infection can become systemic—a condition known as bonamiosis—ultimately leading to the oyster's death. https://phys.org/news/2026-03-ocean-currents-disease-oyster-reefs.html Plants & Animals Thu, 05 Mar 2026 15:20:01 EST news691939141 Mosquitoes transmit several pathogens of public health importance, including malaria, dengue, chikungunya and Zika. These vector-borne diseases are responsible for millions of cases every year, and hundreds of thousands of deaths. The most effective way to cope with the threat of emerging or re-emerging vector-borne diseases is prevention by a rigorous surveillance system, which can help early detection of risk and the initiation of mitigation efforts (e.g. mosquito control). https://phys.org/news/2026-03-mosquito-implications-ai-species-recognition.html Ecology Wed, 04 Mar 2026 14:00:17 EST news691842241 Scientists have discovered that, far from being solitary insects, some cockroaches appear to form an exclusive bond with a partner. And how do they get this relationship off the ground? By eating each other's wings. https://phys.org/news/2026-03-cockroaches-wings-exclusive-partners.html Plants & Animals Wed, 04 Mar 2026 11:40:01 EST news691839844 UC College of Arts and Sciences Professor Thomas Algeo has been studying the planet's five major mass extinctions since the Ordovician Period, when global sea levels were much higher than today. In a paper published in Nature Ecology & Evolution, Algeo provides context for a study examining the process of colonization and spread of plants, known as terrestrialization. https://phys.org/news/2026-03-marine-life-earth.html Evolution Tue, 03 Mar 2026 10:00:02 EST news691750409