Neuroscientists found that sloths sleep around nine and a half hours a day. Previous research had studied only captive sloths, who sleep on average sixteen hours a day, possibly because they are bored and depressed.
Neuroscientists found that sloths sleep around nine and a half hours a day. Previous research had studied only captive sloths, who sleep on average sixteen hours a day, possibly because they are bored and depressed.