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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.
Air-breathing marine vertebrates that have returned to the ocean from terrestrial lineages are a diverse group that include sea snakes, sea turtles, the marine iguana, saltwater crocodiles, penguins, pinnipeds, cetaceans, sea otters, manatees and dugongs. Most diving vertebrates make relatively short shallow dives.
Aquatic turtles mount in water, [88] [89] and female sea turtles support the mounting male while swimming and diving. [90] During copulation, the male turtle aligns his tail with the female's so he can insert his penis into her cloaca. [91] Some female turtles can store sperm from multiple males and their egg clutches can have multiple sires ...
Yes, of course sea turtles breathe air. They are reptiles, not fish. Sea turtles must surface to breathe, but not as often as you think. Diving and hunting sea turtles can stay down anywhere from ...
Turtles, like other reptiles, breathe air, not water. They have lungs, not gills like fish, and so even if they live mostly in the water, they need to come up to the surface to breathe now and again.
5) Female sea turtles lay their eggs. 6) When the season is over, female sea turtles return to feeding sites. 7) Baby sea turtles incubate for 60–80 days and hatch. 8) Newly hatched baby sea turtles emerge from nests and travel from the shore to the water. 9) Baby sea turtles mature in the ocean until they are ready to begin the cycle again.
Some turtles, especially those specialized in diving, are highly reliant on cloacal respiration during dives. [2] They accomplish this by having a pair of accessory air bladders connected to the cloaca which can absorb oxygen from the water.
All but one species of sea turtles are endangered due to destruction of nesting habitats on coastal lands, exploitation, and marine fishing; [6] many species of sea snakes are threatened or endangered due to commercial exploitation (sale of skins) and pollution especially in Asia; marine iguanas are threatened due to their very limited ...