The heavily-armoured turtle, that is. Canon EOS 400D (XTi) · Sigma 17-70mm f/2.8-4.5 70 mm · 1/5 s · f/4.5 · ISO 400 So, turtles — real live ones which exist in actual time and space, as opposed to the cartoon versions — not only can retract their head, tail and legs, but they also have horizontal trap doors which …