Search results
Results from the WOW.Com Content Network
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.
A foraging sea turtle may typically spend 5–40 minutes underwater [57] while a sleeping sea turtle can ... When surfacing to breathe, a sea turtle can quickly ...
Elephant seals stay at sea for between 2 and 8 months and dive continuously, spending 90% of their time underwater and averaging 20 minutes per dive with less than 3 minutes at the surface between dives. Their maximum dive duration is about 2 hours and they routinely feed at depths between 300 and 600 m, though they can exceed depths of 1600 m.
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.
Sea turtles must surface to breathe, but not as often as you think. Diving and hunting sea turtles can stay down anywhere from five to forty minutes. While asleep, sea turtles can stay down for ...
Sea turtles: there are seven extant species of sea turtles, which live mostly along the tropical and subtropical coastlines, though some do migrate long distances and have been known to travel as far north as Scandinavia. Sea turtles are largely solitary animals, though some do form large, though often loosely connected groups during nesting ...
Like other amniotes (reptiles, birds, and mammals) they breathe air and do not lay eggs underwater, ... the leatherback sea turtle can dive over 1,200 m ...
Some turtles rely on cutaneous respiration from enteral respiration around the cloaca during underwater hibernation. [ 4 ] In some sea snakes , cutaneous respiration can account for up to 30 percent of total oxygen uptake and is important when diving, during which blood is shunted away from the lungs and towards capillaries in the skin, in some ...