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All aquatic amniotes (reptiles, birds and mammals) have thick and impermeable cutes that preclude cutaneous respiration, and thus rely solely on the lungs to breathe air. When underwater, the animal is essentially holding its breath and has to routinely return to the surface to breathe in
The physiology of underwater diving is the physiological adaptations to diving of air-breathing vertebrates that have returned to the ocean from terrestrial lineages. They are a diverse group that include sea snakes, sea turtles, the marine iguana, saltwater crocodiles, penguins, pinnipeds, cetaceans, sea otters, manatees and dugongs.
Aquatic turtles can even sleep underwater for short periods! 27. The exceptional box turtle. Box turtle in garden. ... Turtles, like other reptiles, breathe air, not water. They have lungs, not ...
Like other amniotes (reptiles, birds, and mammals) they breathe air and do not lay eggs underwater, although many species live in or around water. Turtle shells are made mostly of bone; the upper part is the domed carapace, while the underside is the flatter plastron or belly-plate.
Sea turtles spend a majority of their time underwater, so they must be able to hold their breath for long periods. [57] Dive duration largely depends on activity. A foraging sea turtle may typically spend 5–40 minutes underwater [ 57 ] while a sleeping sea turtle can remain underwater for 4–7 hours.
Like most turtles, they are able to breathe underwater for extended periods of time. They will spend the colder months underwater, buried in the mud or sand in a state of dormancy. [6] When bothered, spiny softshell turtles will extend their long necks and snap viciously at their attacker, inflicting a painful bite.
In the United States, around 2.3 million households are home to reptiles, including turtles. Here's what the reptile can and cannot eat.
In the northern part of their range common snapping turtles do not breathe for more than six months because ice covers their hibernating site. These turtles can get oxygen by pushing their head out of the mud and allowing gas exchange to take place through the membranes of their mouth and throat. This is known as extrapulmonary respiration. [30]