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, ...

Shell integration typically involves 50 to 60 individual bones fusing into a permanent structural cage. The carapace creates a mechanical constraint that prevents the chest from expanding during ...