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Turtles can rest or sleep underwater for several hours at a time, but submergence time is much shorter while diving for food or to escape predators. Breath-holding ability is affected by activity and stress, which is why turtles quickly drown in shrimp trawlers and other fishing gear. [ 112 ]
Turtles live anywhere from 10 years to 150 years, depending on the species. The average lifespan for aquatic turtles is around 40-50 years old.
Diver with a Green Sea Turtle at Arraial do Cabo, Brasil. Green sea turtles tend to have good vision, well adapted to a life at sea. The turtles can see many colors, but are most sensitive to light from violet to yellow or wavelengths of 400 to 600 nanometers. They do not see many colors in the orange to red portion of the light spectrum.
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 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]
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Sleep can follow a physiological or behavioral definition. In the physiological sense, sleep is a state characterized by reversible unconsciousness, special brainwave patterns, sporadic eye movement, loss of muscle tone (possibly with some exceptions; see below regarding the sleep of birds and of aquatic mammals), and a compensatory increase following deprivation of the state, this last known ...
In the United States, around 2.3 million households are home to reptiles, including turtles. Here's what the reptile can and cannot eat.