英语作文河马的生活我要完成我的作业

Question

英语作文河马的生活
我要完成我的作业

Answer 1

The Name "Hippopotamus":"Hippopotamus" is a Greek combination of "hippo potamus" meaning "horse (of the) river." "Amphibeus" means "double life" in Greek,since the hippopotamus lives a life in the water and a life on land - just as the amphibious frogs and toads.
The hippopotamus is well adapted to an amphibious (two-lives:one in water and one out of water) life.It spends most of its time submerged in water.It emerges at sundown to feed on the grassy plains along the riverbank.It swims well,but usually walks on the river bottoms.It usually lives in groups of ten to fifteen individuals,but can mass in groups of thousands - especially in times of drought and few water holes.Little is known about the social structure.Hippos often fight violently with each other,frequently opening their mouths widely as a threat signal.