Taco the pet tortoise lives in an outdoor burrow. When his humans call him, he (she?) comes out and crawls into their hands. That's a well-trained tortoise!
We have a yellow-eared slider, about four years old, who comes when we call him by name (when he's out of the aquarium walking around on the floor). However, he doesn't really understand gravity yet, so maybe it's a give-and-take.