Family of the Week: The Metazoic Seals
The Metazoic family of seals, known as the Paraphocidae, are not really descended from modern seals. Rather, they come from weasel relatives, like otters. They somewhat resemble modern phocid seals, the external ears are not completely gone, but drastically reduced in size. The tail is either of medium length or very short. The nostrils close tightly shut to keep the water out, as can the ears. These seals have a third, clear, nictitating membrane that covers the eyes when they are underwater. The legs have been reduced to mere flippers. When landed, they move somewhat like turtles or crocodiles. Some are highly social species, living in groups of up to 100 individuals. While some are solitary, such as Monachitus . The eyes are large and round, the body is long, though it is somewhat longer in the species of Eufoedes than in any other seal. These seals also have the longest foreflippers in proportion to it's body than any other seal. They range in size from the 4-foot long-finned ...