Add Yahoo as a preferred source to see more of our stories on Google. Cartoons often suggest turtles wear shells like removable armor. Those stories show turtles stepping out, swapping shells, or ...

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.

"They show now how developmental steps [in the turtle] could have led to this initial formation" of the turtle's shell. In addition to the overt peculiarity of the turtle's shell, or carapace -- which ...

Cartoons often suggest turtles wear shells like removable armor. Those stories show turtles stepping out, swapping shells, or treating them like clothing. Biology disagrees. A turtle shell is not an ...