Nature has many kinds of animals, each animal has its own unique behavior rules, as well as physiological mechanisms, they can be greatly different from humans, such as the way they sleep. Humans spend about 25 years of their lives, which is one-third of their time sleeping. Adults need to sleep 6 to 8 hours a day, while babies' sleep time reaches 16 hours. However, some animals, they may need to sleep 16 hours every day. This time, Allee will bring you: 13 fun facts about animals and sleep that even scholars may not know.

Squirrels: 15 hours

Squirrels look mischievous and energetic, but this appearance is misleading. Squirrels spend about 60% of their time sleeping. Squirrels build nests in branches, twigs and leaves and then sleep in them.

Cats: 12 to 16 hours

In many people's eyes, cats always look lazy. They seem to like lying in the sunshine or lying on their owners' laps. Their sleep time is indeed long, in fact, cats like to be active between sunset and dawn, which is the time when people sleep.

Corvus: 12 hours or 45 minutes

Corvids have different sleep patterns on land. Corvids will sleep for 1 minute at a time and then wake up to sleep again. Repeat until these 1-minute short sleeps total 12 hours. However, when flying, these birds only sleep 45 minutes a day. And they usually sleep after dark, each sleep is only 10 seconds short.

Meerkats: 10 to 12 hours

Meerkats when they sleep, they will gather together, even pile up together. So that animals can keep warm and protect the leader who is always sleeping at the bottom. They are also known as the 'sentries' of the meerkat colony.

Otters: 11 hours

Otters float on the water to sleep. Although sleeping, there is a danger of being attacked by predators or drifting away, but otters still need a lot of sleep. Therefore, they float on the water with their bellies up, holding hands to prevent their companions from being washed away by the current.

Sloths: 10 hours

In the rumors, many people think that sloths need to sleep 15 to 19 hours a day, but this is a misunderstanding. If sloths are raised in captivity, they may indeed sleep so long, but wild sloths don't do that. They rarely sleep more than 10 hours. As the world's slowest-moving mammals, sloths need a lot of time to find food and eat.

Sheep and Goats: 4 hours

Sheep and goats have intermittent 4-hour sleep at night. They gather together when sleeping to keep warm and stay together. They will also take turns to check if there are predators nearby. They are known as 'the flock'.

Ants: 4 to 5 hours

Ants make multiple short naps during the day, each nap lasts 1 minute, totaling about 5 hours. But the queen ant can enjoy 9 hours of sleep a day.

Elephants: 3 to 4 hours

Elephants are huge in size, so they need to spend a lot of time to supplement food and energy. Elephants will stand up to sleep or lean against trees or lie on their sides. But elephants cannot lie down for more than 30 minutes, because their huge bodies may press their internal organs.

Giraffes: 30 minutes

Giraffes will not wander around: to avoid predators, they can only sleep for half an hour at most. And this half hour is divided into several 5-minute short sleeps throughout the day. The long and slender necks of giraffes, it is not easy to find a comfortable sleeping posture, so they often sleep in a Z-shaped posture. Sometimes they also curl up to sleep on the ground. They are known as 'the spotted'.

Dolphins: Never completely asleep

Although dolphins can enter what is called 'sleep mode', compared to other animals, this 'deep sleep' period is not like sleep. This is because even in this stage, dolphins can only close half of their brains, and only the eyes related to this half will close. So they can always stay alert to prevent danger.

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