A magnolia warbler (left) and an American redstart (right). During their migrations, these species may travel together. Credit: Shutterstock This season, billions of birds will take to the skies as ...

It's a scene fit for a nature documentary: In the frigid ocean surrounding Antarctica, the water boils over as seabirds dive from above and marine animals like seals and whales rise from the depths to ...

Deep in Alberta’s Dinosaur Provincial Park, a rare discovery is rewriting what scientists know about dinosaur behavior. For over a century, this park has yielded thousands of fossilized bones. But in ...

A newly discovered trove of fossilized footprints provides what may be the first evidence of prehistoric diversity in dinosaur herds, though not everyone is convinced. A herd of ceratopsians ...

To consider how climate change could cause some extinctions, imagine a tiny mountain bird that eats the berries of a particular mountain tree. That tree can only grow at a specific elevation around ...

A new study projects biodiversity threats if global warming speeds up. Under the most extreme scenarios, about one in three species could be... How many species could go extinct from climate change?