Ever consider the question of whether a turtle can truly pull its head into its shell like a cartoon representation in a children’s tale? The answer is far from being merely yes or no. As mentioned in ...

The fossilized remains of a bizarre-looking reptile are giving scientists new insights into how turtles got their distinctive shells. Some 240 million years ago, this early turtle-like creature lived ...

"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 ...