Turtles
We will never look at a turtle the same way ever again. We had no idea that inside their shells was a hollow space. But now having thought about it more, it makes a lot of sense, especially since they have the ability to hide in their shells. We wish we could do that sometimes.

Be kind to turtles, do not try to crack their shell, thinking that they could just go and find another. The shell is in fact part of them, they are not like some type of snail or crab species that go from shell to shell. For a turtle, their shell is their house and livelihood.