NEW YORK -- A fossil find in Argentina has revealed a two-legged creature that's the most primitive snake known, a discovery that promises to fire up the scientific debate about whether snakes evolved ...

Pythons and anacondas are undeniably massive snakes, capable of reaching lengths and girths that make them some of the heaviest reptiles alive today. But even these modern giants pale in comparison to ...

This ancient, leg-bearing snake is rewriting the story of how serpents slithered, and sometimes walked, their way through ...

Ancient England snake fossil Paradoxophidion helps explain how modern snakes evolved during warm humid Eocene period.

Some 120 million years ago, dinosaurs still ruled the world – and some snakes had four legs. That’s according to a new analysis of a fossil unearthed in Brazil. But some researchers think that the ...