The sea turtle's unique shell evolved many millions of years ago How the turtle shell evolved has puzzled scientists for years, but new research sheds light on how their hard shells were formed.

Turtle shells evolved over the course of 300 million years, but self-defense wasn't the initial driver, researchers think. When you purchase through links on our site, we may earn an affiliate ...

A living South African sideneck turtle next to its 260 million year old relative, Eunotosaurus africanus (Luke Norton) Scientists have found out how turtle shells evolved - and that the process began ...