How do turtles breathe underwater?
The turtle is perhaps most notable for its ability to breathe via its anus. The process, known as cloacal respiration (or more colloquially as “bum breathing”), allows the turtles to extract oxygen directly from the water.
the term is cloacal respiration, and it's not so much breathing as just diffusing oxygen in and carbon dioxide out, but the fact remains: when turtles hibernate, their main source of oxygen is through their rear end.
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