I’m confused as to how anybody doesn’t know what a sea turtle is. Maybe it’s because I have been to so many aquariums and zoos; idkI am always amazed that Americans have zoos and never really visit them.

They don’t have any real defenses other than their shells, but their only natural predators are sharks and crocs. And saltwater crocs are rare and only in certain places so just sharks really.I wonder how they survive against predators.
Sea turtles can't go into their shell right?
Lol you came to this conclusion because he learned something new about one animal?I am always amazed that Americans have zoos and never really visit them.