Turtles can breathe through their bums

turtle

Some turtles, especially those specialized in diving, are highly reliant on cloacal respiration during dives. They accomplish this by having a pair of accessory air bladders connected to the cloaca which can absorb oxygen from the water.

In zoological anatomy, a cloaca is the posterior opening that serves as the only opening for the intestinal, reproductive, and urinary tracts of certain animal species.