So different from human and! A magical sleep in animals

Sleep also evolved along with the development of the brain

Looking at what dream?

Goldfish and tropical fish staring motionless at night, you must look like sleeping. However, this is little different than human sleep.

Sleep in vertebrates have evolved to rest for brain development efficiently. Need to rest the body in the brain in poikilotherms small fish and amphibians is, not much need to rest the brain is.

Comes to the reptile brain and body grows, to rest your body REM sleep and REM sleep to rest your brain emerge gradually. Birds and mammals, will know REM sleep and REM sleep are clear. And made maintenance of brain memory consolidation, simulation and anchorage, in rest your body during REM sleep is not just.

At this point, it has a sleep cycle of the human brain develops most most were completed.

Sloths sleep 1 day 20 hours

That elephant was sleeping short time

Many people sleep at night together 6-8 hours. Is the other animals sleep?

Longest sleep animal koala and the the two-toed sloth ( giant sloth ) , 1 day 20 hours sleep. Sloth is the name. Koala in the Zoo also is always sleepily.

Mouse and dog (Beagle dogs) sleep 13 hours 14 hours, cat or Hamster in a familiar animal. It is surprising that sleeping dogs and cats as. Actually dogs sleeping well during the day might don’t look the appearance because even the slightest noise wakes sleeping too much.

Close to the human chimpanzees and baboons and rhesus sleep 9 hours. Seen from the evolution of sleep, would we also planed sleep less natural. Get sleep 8 hours as well as human animals include rabbits, Guinea pigs, and pig. Companions in the same rat, Guinea pig is sleeping short time than hamsters or mice.

Many short sleep time is known. Cattle, goats, sheep, donkeys, elephants 3 hours, only a 2 hour horse spirit never sleep. At grazing animals sleep short enough for two reasons.

One is to take long time for grass is low in calories, so a need to eat lots, crunch grass, no sleeping time herbivores. Also happening as much as possible because while sleeping is becomes easier to is attacked by predators, and are wary of. Sleep time shorter, yet deeply without sleep and therefore outlet Yoshinaga has defended himself from.

Animals contribute to the study of sleep

Dolphins sleep while swimming

Dolphins have lungs breathing ( fumarole ) nose put out the water, and breathe. Therefore, we “that sleep a half brain hemisphere sleep”.

When the left brain to sleep when sleep right brain hemisphere sleep, close the left eye, right eye is closed. A dip in it is able to sleep even. There are some countries trying to soldier sleeps, hemisphere sleep research.

Migratory birds to fly long distances even hemisphere and while sleeping will go flying through the destinations. Have to wake up while flying because the whole brain just seconds before crashing to the ground “feat. And are do not sleep for a long time even human, sleep see ultra short seconds of “micro-sleep”. Albeit this technique himself, sleep also may be is not a dream quickly.

That proves the existence of sleeping substance for the first time in the world was the experiment with dogs. Intermittent sleepy time ishimori kuniomi Professor at Aichi Prefectural Medical College (now University of Nagoya) the 1909 have discovered sleeping dogs given the cerebrospinal fluid of dogs with another canine brain, was administered. Wake, sleep materials research about 30 kinds of sleep substances found in it.

Cat told the animal to see the dream. Looking a lot of dreams during REM sleep the REM sleep Center are parts of locus coeruleus the brain. To take the rat during REM sleep behavior, such as broken this locus coeruleus cat is found. Basis for the hypothesis that dream is not the Act of waking up when racing, has become.

It is animal cruelty weeks from 9/20. When waking up just as well as to pay attention to the posture of the animal may be new discoveries.

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