This story appears in the May 2018 issue of National Geographic magazine. Nestled among white-sand beaches and brightly colored resorts, the mangrove swamps along Mexico’s Yucatán coast are a ...

The fossil record shows that birds evolved alongside the dinosaurs during the Jurassic period 160 million years ago. The best known fossil is archaeopteryx, which was about the size of a crow.

New insights into the flying capabilities of a nonbird dinosaur were drawn from an unusually well-preserved specimen known as the Chicago Archaeopteryx. By Asher Elbein In 1861, scientists ...

So far, the oldest-known bird fossil is the famous Archaeopteryx lithographica, discovered in 1861 just two years after the publication of Darwin's On the Origin of Species, but Archaeopteryx ...