🔄From the archive: 🐾🌙 Discover which animals sleep the least and the most! From giraffes to dolphins, this article explores the fascinating sleep habits of creatures around the world. animals sleep science 🦒🐬
Part of the difficulty monitoring giraffe sleep stems from their exceptionally strange sleeping pattern. They take a series of short power naps, just several minutes at a time, throughout the day. This often happens while standing — likely an adaptation to protect themselves from predators, since the long-legged giraffe is slow to transition from laying down to standing.
The elephant is another contender for the least sleep in a mammal. Researchers who monitored two free-roaming African elephants found they slept only 2 hours per day, according toThey, too, often sleep standing up. “Sometimes you’ll see them lean up against a tree or something to take some weight off their body,” Stalf says.
Sleep patterns in captivity, such as in zoos where many studies are conducted, typically vary from actual behavior in the wild. This can skew the numbers reported for how much sleep each species needs each day. In contrast to the giraffe and elephant, male lions can snooze nearly 20 hours a day, with females clocking at least 15 hours. Tigers sleep a similar amount of time. One trend throughout the animal world is carnivorous animals, such as big cats, resting many more hours than herbivores like giraffes and elephants that spend most of their waking hours grazing for food. But there are plenty of exceptions to this trend.
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