Whales

WHALES

General classification

Whales are sea-living mammals

Descriptions ;(behaviours, qualities, parts)

They therefore breathe air but cannot survive on land. Some species are very large indeedand the blue whale, which can exceed 30m in length, is the largest animal to have lived on earth.Superficially, the whale looks rather like a fish, but there are important differences in its externalstructure; its fail consist of a pair of broad, flat, horizontal paddles (the tailof fishis vertical) and it has a single nostril on top its large, broad head. The skin smooth and shiny and beneath it lies a layer of fat (blubber). This is up to 30cm in thickness and serves to conserve heat and body fluids.