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Spiny softshell turtles are more dependent on underwater respiration than other freshwater species. This has led to their low tolerance of hypoxic waters; this becomes especially important during times of hibernation, when these turtles must choose hibernacula that are unlikely to become hypoxic. Underwater dormancy can last up to six months. [24]
Male box turtles also include concave plastrons, thicker tails with the cloaca closer to the tip, and longer rear legs with larger curved claws which are used to grip the female shell during mating. They also have a similar internal anatomy to freshwater turtles except for the fact that they lack a degenerative cloacal bursae because they do ...
The loggerhead sea turtle (Caretta caretta) is a species of oceanic turtle distributed throughout the world. It is a marine reptile, belonging to the family Cheloniidae.The average loggerhead measures around 90 cm (35 in) in carapace length when fully grown.
Hibernation takes place during the late autumn season until the spring for softshell turtles. They bury themselves at the bottom of a river/lake in the mud. Food is not as essential as oxygen during this period. Oxygen is needed at a reduced rate than normal and the turtles practice a technique called “pharyngeal breathing”. [17]
The single location where Coahuilan box turtles are found is a 360 km 2 region characterized by marshes, permanent presence of water and several types of cacti. Prior to hibernation, box turtles tend to move further into the woods, where they dig a chamber for overwintering. Ornate box turtles dig chambers up to 50 centimeters, while eastern ...
Common snapping turtles are "quite docile" animals underwater that prefer to avoid confrontations rather than provoke them. [41] The ability to bite forcefully is extremely useful for consuming hard-bodied prey items such as mollusks, crustaceans, and turtles along with some plant matter, like nuts and seeds. [42]
Basking turtles sometimes look like they are crying because behind the turtles eye is the lachrymal gland which stores excess salt from the sea water, which then expels through the turtles eye. In the winter months, turtles living at higher latitudes can hibernate for a short period in the mud. [87]
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.