In cartoons, when a turtle is spooked, it retreats into and closes up its shell. While used for comic effect, this imagery is based in fact — although not all turtles are capable of this protective ...

“Teenage Mutant Ninja Turtles. Heroes in a half-shell, turtle power!” If you can hear the theme song in your head when you read those words, chances are you had an awesome childhood (or good taste).

In cartoons, when a turtle is spooked, it retreats into and closes up its shell. While used for comic effect, this imagery is based in fact — although not all turtles are capable of this protective ...