When the rescuers picked up the green sea turtle from the beach, they were heartbroken to find that his body featured severe bruising. His bottom shell, called plastron, was badly fractured ...

The shell is divided into two main parts: the carapace (top) and the plastron (bottom). These sections are made from bones ...

The shell is also part of a turtle’s skeleton. The upper shell is called the “carapace”, and the lower shell is called the “plastron”. Unlike crabs, a turtle cannot change or shed its shell.