Feral burros wreck wetlands in the desert national park. But a study found that when mountain lions prey on them, the donkeys may help some terrain thrive.
With a one-of-a-kind museum specimen, researchers recreated the chirp of ancient cricket relatives that droned alongside the dinosaurs.
You might be tempted to say “gesundheit,” but the sea creature’s snot helps feed other marine organisms.
Two research teams round that dolphins could forge strong social bonds with outsiders within a few years
A team of biologists and mathematicians studied hours of video to learn how insects take shape in the egg. The secret is geometry.
A team of researchers published a rebuttal to an argument advanced by another group earlier in the year. The disagreement over the king of dinosaurs is far from over.
Covid precautions created a global slowdown in human activity — and an opportunity to learn more about the complex ways we affect other species.
The birds hammer away, yet they don’t get concussed. Scientists found that assumptions about the animals’ impact-absorbing skulls were wrong.
Fossils found in southwestern China give a hint to the development of the panda’s sixth digit — a rudimentary, thumblike bone extension.
Two different ancient wolf populations contributed DNA to modern dogs, according to a new study.
Three sisters braved lions, crocodiles, poachers, raging rivers and other dangers on a 1,300-mile transnational effort to forge a new dynasty.
As a new version of bird flu spread through North America this spring, scientists began finding the virus in red foxes, bobcats and other mammals.
A new study finds that the feline reaction to catnip and silver vine helps to stave off mosquitoes and other bloodsucking insects.
The origin of the domestic fowl is more recent than previously thought, but it may have taken them thousands of years to become food.
Evolutionary theories said giraffes developed their height to get to better eats, but ancestors may have gained the advantage through head-butting battles.
The largest shark that ever lived may have vanished in part because the comparatively smaller great white had a taste for the same prey.
Scientists directly measured the metabolic rate of extinct animals, which revealed that some giant dinosaurs became coldblooded.
The Mekong River is home to enormous and endangered aquatic life. A 400-pound fish’s release shows how some conservation efforts in Cambodia are paying off.
The puzzling coronavirus cases highlight ongoing surveillance challenges and blind spots.
More than 1,200 species of arachnids are part of a largely unregulated global marketplace, according to a new study.
Lovebirds — and perhaps other species — seem to confound nature’s strong preference for bilateral bodies.
Researchers are gaining a better understanding of the biochemical processes that precede female octopuses’ deaths after they lay and then tend their eggs.
A study of Australian fish that care for offspring through mouthbrooding shows that things underwater are not always as monogamous as they seem.
Why were Bolivian river dolphins swimming around with a large predatory snake in their mouths? “There are so many questions,” one researcher said.
A meme about the transitional fossil Tiktaalik argues that although we did emerge from the sea, we aren’t doing just fine.
Researchers described Annakacygna, a family of flightless ancient swans that were filter-feeders.
When a bird collides with an airplane, determining its species can help prevent future collisions. To do that, scientists need snarge.
A nest with a roof may provide some birds with more protection. But bird species that build simpler nests may be more adaptable to changing conditions.
In this video of a bat fight, is the tiny one a bully, or is it just meting out justice up the food chain?
Research on past conflicts suggests that the war in Ukraine could have a profound environmental impact.
The humble Columba livia is much more than a rat with wings.
The western side of the Antarctic Peninsula has seen sharp declines in Adélie penguin populations in recent decades. Things look better on the eastern side. Take a tour.
Some pairs of cranes in India, known for their monogamous devotion, seem to bring in a third bird to act like a kind of avian au pair.
A team of Italian scientists describe what they believe is a gaping scar from one of these ancient battles on the neck frill of the Triceratops.
Bird-watchers love to see vagrants, or birds that have traveled far outside their range. But scientists say they have a lot to teach us in a world facing ecological change.
Yakei, the 9-year-old macaque who seized power at a preserve, played the field and mated with at least one male, all while managing to maintain her status as her troop’s alpha.
A lab in Massachusetts may have finally found an eight-armed cephalopod that can serve as a model organism and assist scientific research.
Tiny bits of plastic have infiltrated the deep sea’s main food source and could alter the ocean’s role in one of Earth’s ancient cooling processes, scientists say.
The bird, which sought prey in a part of China 6 million years ago, had eyes shaped in a way that suggest it was not nocturnal like most owls living today.
Cameras captured the wild feline purloining a Burmese python’s eggs, giving hope that the state’s native species are responding to a voracious, invasive predator.
The “king” of the trilobites was snacking on whatever it could eat some 514 million years ago in the Cambrian era, even shelled creatures of its own species.
Techniques from computer science may help explain the tendency in biology for structures to repeat themselves.
The magpies showed their smarts by helping one another remove tracking harnesses that scientists carefully placed on them.
For the past 10 years, wolves have been steadily returning to the state after being wiped out a century ago. But not everyone is rolling out the welcome mat.
When researchers end their careers, where do their biological collections go?
The specimen shows that modern tuataras found in New Zealand are little changed from ancestors that lived 190 million years.
Scientists believe that lions everywhere can climb up into branches, but they’re just not very good at it and need help from the right kind of tree.
Scientists also found signs of possible deer-to-human transmission, but there is no evidence that the new lineage poses an elevated risk to people.
The premise, put forth in a new paper, highlights an assortment of tensions in dinosaur paleontology, including how subjective the naming of species can be.
To bring abalone back from the edge of extinction, scientists need to find improved ways of coaxing the snails into reproducing.