Many people like them very much.In Ocean Park,we often see them perform in water.Play loop and ball...Do you know why I like them?Because they are good friends of human being.If you drop into ocean,they will save you.If you like them,they will paly with you too.They have two beautiful and deep eyes(I think so).harm them.Dolphins are mammals.There're 62 kinds of them in the world.The adult dolphin is 3 meters long and its weight is 180KG.Dolphin can swim at 40km per hour which is like the medium speed of a torpedo boat.My favourite dolphin is They have pink bodies.They are beautiful.arent' they?