Years of cartoons and comics have convinced us turtles can hop in and out of their shells in a blink of an eye. Is this really possible? And are turtles born with shells, or do they grow them later...
Years of cartoons and comics have convinced us turtles can hop in and out of their shells in a blink of an eye. Is this really possible? And are turtles born with shells, or do they grow them later...