Wild ID Cetaceans and seals

The Cetaceans and seals guide features 25 species of seals, dolphins, porpoises and whales most likely to be seen in UK waters.

Whales, dolphins and porpoises make up the mammal order of cetaceans. These sea mammals have several adaptations to an entirely aquatic life. Firstly the body has a streamlined shape. Secondly the only limbs are a small pair of pectoral fins. Thirdly there is a tail fin, moved up and down to propel the animal through the water. Furthermore most cetaceans have a dorsal fin for stability. Cetaceans breathe through blow holes on the top of their heads. As well as the cetaceans, there are two species of seals breeding in the UK: the common seal and the grey seal.