Dolphins are cetacean warm blooded animals nearly identified with whales and porpoises. There are right around forty types of dolphin in 17 genera. They differ in size from 1.2 m and 40 kg, up to 9.5 m and 10 tons.
The name is initially from Greek δελφίς (delphís), "dolphin", which was identified with the Greek δελφύς (delphus), "womb"....
