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 ...

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 ...

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 ...

In deserts, jungles and swamps around the world, snakes are waging a biochemical war against their prey. When a snake displays its fangs, it’s showing off one of evolution’s greatest weapons. This is ...

Imagine pulling a dusty bone from a museum drawer and realising it doesn’t fit anywhere in nature’s family tree, like finding a puzzle piece from another box. This is what happens when ...