There are 33 species of pinnipeds alive today, most of which are known as seals. Pinnipedia is made up of three main group. Seals are part of the pinniped order of marine mammals. In the wild, grey seals can live for up to 35 years. Some seal species feed off fellow seals! Seals can sleep underwater. A seal mum’s milk can be up to 50% fat. A male southern elephant seal has an average weight of 8,000 pounds while females are much smaller. 5 his drastically contrasts the smallest seal in the family of otariids, the Galapagos fur seal, which ranges between 60 to 140 pounds on average.

Seal Fun Facts for Kids