The mouse's mouth is sharp and long, its eyes are smaller than sesame, its body length is about 5cm, and its voice is very sharp. What kind is it? Ask for photos. Not a mole.

With a body length of only 4-6 cm, a tail length of 4-5 cm and a weight of 1-5 g, shrew is the smallest mammal among the known animals in the world. Insect-eating animals, such as shrews, have soft and fine fur, flexible snout, five-toed appendages, hooked claws and scales on feet and tail.

There are nipples at the opening of the breast. Their heads are flat, their brains are small, there is no sulcus in the cerebral hemisphere, and they can't cover the cerebellum backwards, so their intelligence is relatively low. The olfactory leaves are large and the sense of smell is very sensitive, but the eyes are underdeveloped. Generally, there are 26 to 44 teeth. Although irregular teeth, but the degree of differentiation is weak, showing the original characteristics, the number of teeth decreases with the specialization of body shape.

Extended data:

Living habits

Dietary characteristics

The shrew is always busy eating all day, and she has to swallow at least the same weight as herself every day. If the food is rich, it can even eat food three times its own weight a day, which is really a "big belly man".

Offensive and defensive

Small shrews have salivary glands under the upper jaw, which can secrete venom. If a person catches it and is bitten by accident, his arm will be hot and swollen, causing severe pain, which will disappear in a few days. Small shrews also use this weapon to hunt. If a small animal is bitten, it will suddenly lose consciousness and cannot move. Scientists have done experiments.

Injecting the liquid secreted by the salivary gland of shrew into mice will soon cause physiological changes in mice, such as decreased blood pressure, slow heartbeat and dyspnea. In less than a minute, the venom broke out and the mouse was paralyzed.

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