The Crabeater Seal just may cover more distance on land than any other seal. Living in the Southern Ocean, Crabeater Seals are found in Antarctica and South Africa. A few years ago researchers in Antarctica discovered a male pup on the Crevasse Valley Glacier more than 70 miles (113 km) from the ocean and more than 3,000 feet above sea level (920 meters). While marine mammal researchers do not normally record distance an aquatic animal can cover over land, many researchers give the nod to the Crabeater Seal as being the species most likely to cover the longest distances.
Part of the reason is that the Crabeater Seal is much smaller than the Weddell Seal, its Southern Ocean cousin who lives in Antarctica year round. At 1,200 pounds and more than 10 feet long, the Weddell Seal is more than twice as heavy as the Crabeater Seal, who reaches approximately 500 pounds and only grows to be about 7 feet long.