用英语介绍海豚的简介

Dolphins are mammals,cetaceans,toothed whales,porpoises,commonly known as the dolphins,whales are smaller,a total of nearly 62 species,distributed in the oceans of the world.Body length of 1.2 to 10 meters,body weight 23 225 kg.Dolphin mouth is generally pointed (Orcinus orca except),upper and lower the about 101 sharp teeth,mainly on small fish,squid,shrimp,crab feed.Dolphins like " collective " life,little criterion a few,many hundreds of.The dolphin is a kind of ability is outstanding,be clever and sensible sea mammals.After training,can play table tennis,arcing ring.The dolphin brain is developed in most of the ocean animal.The brain takes me 2.1% of body weight,the dolphin brain accounts for its weight 1.7%.The dolphin brain consists of two completely separated parts,when one part of the work,another part of full rest,therefore,dolphins can be life-long sleepless.The dolphin is rely on echolocation to determine the target distance,direction,position,shape,and even the nature of the object.Someone to do the test,the dolphin 's eyes,muddy the water,they can quickly,accurately to throw its food.The dolphin is not only has the astonishing sense of hearing,but also has the excellent swimming and unusual diving ability.One test,the dolphins diving record is 300 meters deep,and people do not wear a diving suit,can dive to 20 meters.As for its swimming speed,is more human than the.Dolphins can reach speeds of 40 miles per hour,equivalent to the medium speed torpedo boat ...Because it has a streamline body,the skin also has good elasticity.

你用中文写好。。我帮你翻译。。