A new species of fossil snake unearthed in Wyoming is rewriting our understanding of snake evolution. The discovery, based on four remarkably well-preserved specimens found curled together in a burrow ...

But in snakes, it’s more like a wrap, a bony tube that’s only open toward the face and spine. Protecting the brain that way meant snakes were free to let the rest of the skull’s bones move about. And ...

A 100-million-year-old fossil of Najash rionegrina from Argentina shows early snakes retained hind legs and a cheekbone, challenging the long-held belief they evolved from small burrowers. The find ...

The discovery of an ancient snake fossil has changed the way that scientists view the evolution of snakes. About one hundred million years ago, some snakes did not have complete limbs - they still had ...

Nearly 100 million years ago, snakes weren’t the sleek, limbless creatures we know today—they still had hind legs and even a cheekbone that has almost vanished in modern species. A remarkably ...