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Researchers from the Texas A&M College of Veterinary Medicine and Biomedical Sciences (VMBS) have discovered that bison in Yellowstone National Park—the only group of American bison that has continually existed as wildlife in the United States—now consist of a single large, interbreeding population derived from multiple historic bison herds.

An international team of marine biologists have published research in Molecular Ecology that shows the benefits of gene flow between geographically distant and genetically different killer whale populations. The paper is titled "Admixture Increases Genetic Diversity and Adaptive Potential in Australasian Killer Whales."

Analysis of sedimentary ancient DNA has illuminated 6,000 years of the lives of Adélie penguin colonies on Antarctica's Ross Sea coast, showing how animals in the region responded to climate and environmental change events over millennia.

Scientists at the Natural History Museum (NHM), London, have discovered that a long-overlooked moth specimen in the Museum's collection was in fact collected by explorer and naturalist, Alfred Russel Wallace, in 1855. This was at the same time as he was formulating his own revolutionary ideas on the origins of species that he would go on to share with Charles Darwin.

Ancient frog relatives survived the aftermath of the largest mass extinction of species by feeding on freshwater prey that evaded terrestrial predators, University of Bristol academics have found.

Researchers at Rice University have uncovered a critical link between rising temperatures and declines in a species' population, shedding new light on how global warming threatens natural ecosystems. The study, published in Ecology and led by Volker Rudolf, revealed that rising temperatures exacerbate competition within populations, ultimately leading to population crashes at higher temperatures. It offers one of the first clear experimental confirmations that...

Hungarian researchers have discovered unique bacterial communities in thermal waters that may help unravel the development of stromatolites, one of Earth's oldest rock formations. These findings not only contribute to understanding Earth's geological past but also provide valuable insights into biological and geological processes occurring in extreme environments today.

Researchers at the University of Gothenburg have discovered that what was previously thought to be a unique seaweed species of bladderwrack for the Baltic Sea is in fact a giant clone of common bladderwrack, perhaps the world's largest clone overall. The discovery has implications for predicting the future of seaweed in a changing ocean.

We live in an era when human activities are negatively modifying the world at alarming rates. We are experiencing a massive species extinction due to environmental damage caused by human land use change, overexploitation, pollution, climate change, and the introduction of invasive species.

An exploratory expedition describes two deep-sea, low-oxygen ecosystems in the Red Sea, including some surprising fish. The findings are published in PNAS Nexus.

An herbicide may "drift" from the agricultural fields where it's sprayed and harm weeds that grow at the edge of the fields, impacting pollinators.

When sea otters were reintroduced along the coastlines of islands in Southern California and British Columbia, researchers saw kelp forests return to areas that were destroyed by sea urchins. But how slow or fast they grew back depended on the location—and until now, scientists didn't understand why.

A research team has identified a new species of tiger swallowtail butterfly living in eastern parts of North America. In their study, published in the journal ZooKeys, Julian Dupuis, B. Christian Schmidt, Charles J. DeRoller and Xi Wang captured and compared samples of Papilio glaucus and Papilio canadensis hybrids and compared them with both species, finding evidence that the hybrid butterflies were actually a...

Comprehensive screening analysis of organohalogen compounds in blubber samples of 11 toothed whale species stranded on Japanese coasts revealed species-specific accumulation profiles, with a total of more than 300 organohalogen compounds detected. For the first time, the composition profiles of marine natural products were found to be useful indicators of the feeding habitats and migration history of individual whale species.

In a study published in Scientific Reports, researchers from the Royal Botanic Gardens, Kew, working with partners in Africa and the UK, present a novel plant-host identification method that could help in the fight to reduce the transmission of infectious diseases such as malaria, through restricting the preferred plant food sources of mosquitoes.

The narwhal (Monodon monoceros), an iconic whale of remote Arctic waters, is widely known for its long, spiral tusk, which is really an elongated tooth. The tusk, which is predominantly found in males and can grow up to 10 feet long, is one of the most fascinating traits in nature and the inspiration for myths such as the unicorn. It is believed to play...

A study recently published in Science has found that classical models of collective behavior fail to explain the mechanisms driving desert locust swarms—an ecological phenomenon that affects millions of lives worldwide. This research offers a new perspective on the cognitive and sensory mechanisms that underpin collective motion, challenging long-held beliefs in the field of animal behavior.

An analysis of data covering 12 years and 10 U.S. Corn Belt states reveals that farmers suffer economic loss from the overapplication of genetically engineered corn designed to combat rootworm pests.

Researchers from the University of Padua in Italy found a juniper at Utsjoki in Finnish Lapland, which they analyzed to be 1,647 years old by examining the annual rings. The paper is published in the journal Ecology.

Conservation strategies are turning back the doomsday clock in threatened Florida-Scrub Jays—but not without caveats, a new study published in Current Biology shows.

Animals have to make strategic decisions when foraging, especially when they are very hungry. One of these decisions involves choosing between predictable (less risky) and unpredictable (more risky) sources of food, especially if the latter promises greater reward.

A new study suggests that the removal of predatory fish such as sharks from coral reefs may be a key factor driving outbreaks of coral-eating crown-of-thorns starfish.

Researchers from Polar Bears International, San Diego Zoo Wildlife Alliance, the Norwegian Polar Institute, and the University of Toronto Scarborough reveal the first detailed look at polar bear cubs emerging from their dens, captured through nearly a decade of remote camera footage in Svalbard, Norway. This research, published today on International Polar Bear Day in the Journal of Wildlife Management, marks the first combination...