According to one legend, Pope Gelasius wanted to put an end to the debauchery in the late fifth century. He declared Feb. 14 ...

Some whittled down to just 30 percent of their original size, an adaptation to increasing temperatures known as the ...

Lovers have always batted their eyes on Valentine’s Day as cherubs circled overhead. Or have they? Historians aren’t sure ...

Interestingly, birds remain woefully understudied when it comes to the optical extras. Until now, no one had looked for the ...

The same goes for anybody who went for a plesiosaur: they weren't dinosaurs, and neither were their flying pals. “You may ...

For decades, scientists have wondered at the taxonomy of Vegavis iaai—an ancient avian specimen that lived in what is now ...

"Few birds are as likely to start as many arguments among paleontologists as 'vegavis,'" said professor Christopher Torres.

We learned at school that there are five different classes of animals. These are mammals, birds, fish, reptiles and amphibians. However, this knowledge, long enshrined in textbooks, does not seem to ...

Sixty-six million years ago, at the end of the Cretaceous Period, an asteroid impact near the Yucat n Peninsula of Mexico triggered the extinction of all known non-bird dinosaurs. But for the early ...

Eukaryotic Arf family proteins involved in endomembrane organelle dynamics arose from the Asgard archaeal ArfR GTPases, indicating this capability likely originated in the archaeal ancestor of ...

NPR's Ailsa Chang talks with Emily Kwong and Regina Barber of Short Wave about the fluid dynamics of crowds, an early fossil of a modern bird and new data on how people's moods change through the day.