A reexamination of fossils found in Mongolia has revealed a previously unknown “missing link” species that led to dinosaurs ...

A first-ever collaboration between the National Gallery of Art and the Smithsonian examines the birth of natural history.

One of the biggest mysteries of evolution is how species first developed complex vision. Jellyfish are helping scientists ...

This dinosaur’s skull was light as air but its mouth was packed with power—and a unique ability to quickly grow teeth. Here’s ...

This dinosaur’s skull was light as air but its mouth was packed with power—and a unique ability to quickly grow teeth. Here’s ...