Sleep (non-human)
Sleep in non-human animals refers to how the behavioral and physiological state of sleep, mainly characterized by reversible unconsciousness, non-responsiveness to external stimuli, and motor passivity, appears in different categories of animals.
Rats kept from sleeping die within a couple of weeks, but the exact function of sleep is still unknown.
Read more about Sleep (non-human): Definition, Unihemispheric Sleep, Sleep in Hibernating Animals
Famous quotes containing the word sleep:
“... if a person is to be unconventional, he must be amusing or he is intolerable: for, in the nature of the case, he guarantees you nothing but amusement. He does not guarantee you any of the little amenities by which society has assured itself that, if it must go to sleep, it will at least sleep in a comfortable chair.”
—Katharine Fullerton Gerould (1879–1944)