This sea animal is normally found in cold waters i.e. Arctic oceans and Southern Oceans but few species can be found in warmer places around the world as well like in Lake Baykal. Seals lives in groups and it is impossible to find a seal living alone in natural habitat. Their population is decreasing even in cold waters because of extensive hunting. Mostly, seals hunt fishes and they can live in water even in polar regions for a long time. Seals are those sea mammals whose four limbs are replaced with flappers. The Elephant seal is the largest seal in the world and it mostly found in cold waters.