Have you ever thought about how animals sleep? Most likely nothing special in this you do not find. But in fact, the habits of animals to dive into the kingdom of Morpheus are unusual. See for yourself.
1. Dolphins
During sleep, dolphins and whales disconnect only one hemisphere of the brain, while the other half at this time watches what is happening around and does not allow the individual to drown.
2. Bats
Bats can sleep up to 20 hours a day! The most comfortable position for sleeping is upside down, since it is the most convenient to take off from it.
3. Rodents
Some rodents are able to sleep for six months! This concept is called hibernation - the state of the slowed-down life of the organism, which helps to survive in the period of cold weather and lack of food.
4. Sharks
It used to be that sharks do not sleep at all, because they need to be in constant motion to let the water pass through the gills for breathing. Now there is a version that sharks disconnect the brain, but continue to swim.
5. White Sharks
Scientists suggest that white sharks sleep, settling against the current. Thus, oxygen enters the body of a shark with a stream of water, while the individual itself does not apply any effort.
6. Walruses
Hold on the surface of the water during sleep walrus helps the gill sac, which they if necessary inflate.
7. Baboons
The life of the baboons of Guinea is full of dangers. Although they move on the ground, but sleep on trees. Sitting. Always ready to escape from the enemy.
8. Reptiles
Just as some animals fall into hibernation, others fall into the summer, in order to more easily transfer all the hardships of the heat. Mostly it's amphibians and reptiles.
9. The Foxes
Foxes sleep in the open even in very cold winters. Since the tip of the nose and the paw pads are sensitive to freezing, the beast sleeps, wrapping its fluffy tail around the body.
10. Snails
The snails are sleeping for years! There was a case when an uninhabited snail was mistaken for the dead and placed in a museum. What was the surprise of the workers of this museum, when a few years later the snail woke up, got out of its shell and crawled away.
11. Frogs
The body of the frog contains a kind of natural antifreeze, so some species survive in the frozen state, without palpitation and breathing for a long time.
12. Giraffes
Giraffes can do without sleep for weeks. Scientists believe that this depends on their size and speed of movement. On average, "long-necked" sleep for 40-60 minutes a day.
13. Polar bears
These animals, unlike their brown brethren, do not fall into hibernation, as their body temperature hardly drops, and at any moment they can wake up. In the winter sleep only pregnant and feeding newborn baby females fall.
14. Chimpanzee
The dream of chimpanzees, orangutans and gorillas is similar to the human. Primates curl up in safe places.
Sperm whales
In 2008, the researchers found that the sperm whale sleeps motionless, hanging in an upright position with its noses looking to the surface of the water. Sperm whales have a period of deep, continuous sleep. At the same time, they sleep very, very little.
16. Birds
Birds are able to fall asleep right on a branch, clasping her claws tightly.
17. Puppies
Puppies and squirrels sleep, nuzzling each other with spouts to keep warm.
18. Cows
Cows prefer to sleep next to their relatives. In addition, the order of sleep depends on the "social hierarchy". Ethologists call this "hierarchical ranking".
19. Zebras
Horses, zebras and elephants are asleep standing up! Why? SECURITY. These animals always need to be on the alert.
20. Ducks
Ducks sleep in groups. Those of them that are at the edges of the pack guard it from predators.
21. Meerkats
The dream of a meerkat is like a dream of puppies and squirrels. But besides this, rodents dig carefully planned tunnels to maintain their safety.
22. Flamingo
Flamingos, like horses, sleep standing, but not because of predators, but because there are simply no suitable conditions in their habitats to sleep lying down.
23. Elephants
In general, elephants can sleep lying down, but not for long. The mass of their body is so great that during sleep the elephant can damage its internal organs.
24. Migratory birds
Migratory birds have adapted to sleep on the fly! Representatives such as the Swallowbird Svenson fall asleep hundreds of times, but these dreams last only a few seconds.
25. Calans
For dessert! In the sea, sea otters can often be observed in an unusual position for other marine mammals - the belly up. During the sleep, the sea otters hold each other by the paws so that they are not swept away by the current.