Mixodectes pungens, small mammals that inhabited western North America 62 million years ago,weighed about 3 pounds, dwelled in trees, and largely dined on leaves. Illustration by Andrey Atuchin For ...

I’m also a big fan of “heel veel,” which means very much. I learned both from Duolingo, the addictive language app I take lessons with daily. So does my 12-year-old daughter, my husband ...

Duolingo is a digital language education platform that serves over 116 million users every month. Revenue topped expectations in 2024, and its profits soared. The stock looks expensive, but it ...

Editor's note: This article features an excerpt from Pete Dunne and David Allen Sibley's new book "The Courage of Birds: And the Often Surprising Ways They Survive Winter." For more details on the ...

In an interview with Sixth Tone, Wang takes us inside the grueling world of fossil hunting, explores what Baminornis reveals about bird evolution, and explains why each discovery raises more questions ...

García-Moreno. The studies, published in Science, used advanced techniques in spatial transcriptomics, developmental neurobiology, single-cell analysis, and mathematical modeling to trace the ...

More: A dinosaur museum in an unlikely place Edward Braun, a professor of biology at the University of Florida who has studied the evolution of birds, said the study's findings suggest that there ...

Scientists have found a Jurassic-age fossil in China that changes our understanding of bird evolution. The fossil, named Baminornis zhenghensis, suggests that birds developed sophisticated flight ...

A new study in Nature describes a nearly complete and intact fossilized bird skull from Antarctica, providing insight into the early evolution of modern birds and avian diversity at the end of the Age ...

For more than a century, scientists believed that a fossil of a winged dinosaur from the Jurassic Period discovered 160 years ago in Germany represented the earliest birds. Now, researchers have ...

In an elaborate marketing campaign this month, Duolingo seemingly killed its viral green owl mascot in every country but one. "Duo, our owl, faked his death in every single market that we had ...