Narrator: A turtle's shell is as much a part of its body as our rib cage is of ours. In fact, it is their rib cage, and their spine, and their vertebrae, and their sternum. Basically, a turtle's ...

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 ...

Sometimes animated turtles seem to live inside their shells like it’s a tiny home. They may even hop out of the shell and run around. That’s funny in cartoons and games, but my friend Ryan Wagner told ...