Is a turtleâ€™s shell just like, an armor for the actual turtle, or does the shell actually contain all the turtleâ€™s organs and stuff?
The turtle is an interesting creature, is it not? In fact, the shell is just what it appears to be – a shell. The body of the turtle under the shell houses all the internal organs. One turtle anatomy weirdness is that the lungs of the turtle are just beneath the shell – pretty much pressed up against it – and this means that the turtle breathes by squishing the lungs against the upper shell and then letting them expand.
But yes, definitely the shell is just armor. There’s a bony inner layer and a scaled outer layer. And there is a top layer (the carapace) and a bottom layer (the plastron).
I won’t go into any further detail, since I’m not an expert, but keep in mind – this shell is what allows the turtle to be an excellent candidate for ninja training.