Hibernation in animals

Hedgehogs, dormice, hamsters, marmots our latitude, ground squirrels, jerboa, bats dive into hibernation. They have dramatically slowed down all the vital processes, the number of breaths greatly reduced. For example, a woodchuck number of breaths per minute drops from 20-24 to 2-3, the hamster - from 32 to 8, one of the gophers - from 100-360 to 15. Dramatically reduces the temperature of the body: in the waking animal, it ranges from 35 ° to 38 °, in a state of hibernation, sometimes equal to the whole tenths of a degree Celsius. For example, a bat vechornytsi body temperature is usually equal to 37,9 °, but during hibernation it sometimes goes down to only 0,1 °; a hedgehog falls to 1,8-4,3 °, a small ground squirrel - to 0 7 - 1,5 °. Such an animal is in complete daze, and metabolism of its extremely reduced. Under laboratory conditions, the bat can even be supercooled so that the temperature of her body falls to -4,33 °. And yet such a bat heart continues to beat and makes about 8.5 beats per minute (at normal temperature animal - up to 420 beats per minute). In reptiles and amphibians hypothermia is very strong, and they have the body temperature drops below zero. But the juices of the body remain liquid, and as long as they do not freeze, the animal alive, although it is strongest in a daze.