Hippopotamus [hé m ǐ] ① Hippopotamus (scientific name: Hippopotamus amphibius) is the largest omnivorous mammal in freshwater species, with a huge body, a body length of 4m, a shoulder height of 1.5m and a weight of 3 tons. It has a round body, short limbs, four toes on its feet, a big head, small eyes and ears, a particularly big mouth and a small tail.

(2) Living in tropical areas rich in aquatic plants in Africa, they are often composed of more than 65,438+00 animals, sometimes forming hundreds of large groups. Most individual hippos are adult males expelled from the group; Almost all of them are in the water during the day, feeding on aquatic plants, and the daily intake is above 100 kg. When aquatic plants are scarce, they go ashore to feed on plants or crops at night. Gentle temperament, afraid of cold and warm, good at swimming, can sneak along the bottom of the river for 5 ~ 10 minutes; During the mating season, there is a struggle between males, and the pregnancy is about 8 months, and each child 1 offspring. Lactation 1 year, sexual maturity of 4-5 years old, life expectancy of 30-40 years. Distributed in Africa.