Otter is a mammal belonging to the genus Otter of Carnivora, with a slender body and short and round limbs. The head is flat and slightly wide; The whole body hair is short and dense, with silky luster; The back and tail are brownish black or brown, and the abdominal hair is long and light brown. Otter is also called otter cat, fish cat, water dog, water hair and water monkey.
Otters are distributed all over China, Europe, Asia and North Africa. Otter is a semi-aquatic animal, which often lives in rivers, lakes, streams and banks, even in rice fields, and is more common in lakes and places with gentle water flow. Otters often dig holes in waterside slopes, bushes, roots, crevices or weeds. They sleep during the day and come out at night. They are good at swimming or diving, and their nostrils and ears can be closed in the water.
morphological character
Otter is a mammal belonging to the genus Otter of Carnivora. The otter is slender, with a body length of about 560-800mm, a tail length of about 300-400mm and an oblate body length. The head is flat and slightly wider, the kiss is short, the eyes are slightly rounded, the ears are small, the outer edge is round and the landing position is low.
The limbs are short and round, with webbed toes (fingers), several short bristles in the center of chin, several short bristles behind the wrist pad of forelimbs, and small round flaps in nostrils and ear canal, which can be closed when diving to prevent water from invading. The whole body hair is short and dense, with silky luster, brown on the back and tail, and long and light brown on the ventral surface.