May 20, 2022
The longest-lived vertebrate animal is the Greenland shark, which is estimated to live at least 250 years, though some suspect it could live as long as 500.
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Do Sharks Sleep?
It is a common misconception that sharks as a species never sleep because they must keep moving to stay alive. Sharks do engage in periods of rest throughout the day, but it is much different from the kind of sleep that other animals engage in. It is true that many types of sharks must keep moving
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