While whales, dolphins and manatees have fully adapted to live in the water, seals and sea otters still come on land or ice to rest, to mate and to raise their offsprings while polar bears are strongly connected to live from marine food resources. 

There are about 15 baleen and 70 toothed whale species while pinnipeds are divided into 19 species.

Baleen whales

Toothed whales

Others