Science

100-Million-Year-Old Snake Had Hind Legs and Mysterious Lost Bone

Najash rionegrina fossil reveals early snakes were large predators with wide mouths, not small burrowers as previously thought.

100-Million-Year-Old Snake Had Hind Legs and Mysterious Lost Bone
Read the full reporting at ScienceDaily Top.

Originally reported by ScienceDaily Top.

snake evolution Cretaceous period fossil discovery paleontology skull anatomy Argentina