There are 33 species of seal world-wide. Grey seals have been known to live for 46 years, they are larger than common seals, and have a distinctive profile. Seals are insulated from the cold by a thick layer of blubber, they have sensitive whiskers that help them to detect prey in murky waters.
Grey seals mate on land, but common seals usually mate in water. Unlike whales and dolphins, seals give birth on land. As soon as a pup is born, its mother forms a bond with it by smelling and calling to it.