This group belongs to aquatic mammals. It consists of three species: Phocidae, Sea Oysteridae, Sea Elephants or Odobenidae.
The seals include 9 species and 11 species, including the type called the gray seal Halichoerus grypus, and the phoca vituli calf. The mammal is a mammal that lives in many parts of the world but is concentrated in some regions of the North Sea and Greenland in the Northern Hemisphere and in some islands in the southern hemisphere. Such as sea lions and seabirds, a species that lives in warm waters such as the Caribbean Sea, some African rivers and beaches, as well as a species that lives in the Amazon.
Many falcon species are threatened by extinction because of their fur and oil from their fat and meat. The pollution is also considered one of the causes of the decline of their numbers.
Most seals in the oceans or inland seas live on land, while few live in freshwater. For example, the Bekal squalor lives in Lake Bical in the south of the former Soviet Union. Seabeds are abundant in polar seas, but few in tropical waters.