When you buy through links on our articles, Future and its syndication partners may earn a commission. The broad-shelled river turtle (Chelodina expansa) falls into a group known as side-neck turtles.

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 turtle neck retraction requires distinctive cervical features. Turtles are classified into two main categories, depending on whether they retract their heads by pulling them straight backwards, ...

A sea turtle’s shell is living bone fused directly to its spine and ribs. It is not a detachable shield or an external case, as certain quirky cartoons have shown. The shell grows with the turtle, ...