Some of these giant vegetarians were as tall as a 3-story building. Microscopic analysis of their teeth, bones and eggshells ...

People have slowly come around on the idea that dinosaurs actually had feathers, but this tiny dino had some very unique ...

New research shows prairie dogs play an outsized role in nutrient cycling, adding to their list of beneficial services as ecosystem engineers. Ann Batdorf, Smithsonian’s National Zoo and Conservation ...