The Weddell seal, Leptonychotes weddellii, is a relatively large and abundant true seal (family: Phocidae) with a circumpolar distribution surrounding Antarctica. Weddell seals have the most southerly distribution of any mammal, with a habitat that extends as far south as McMurdo Sound (at 77° S). It is the only species in the genus Leptonychotes,[1] and the only member of the Antarctic tribe of lobodontine seals to prefer in-shore habitats on shore-fast ice over free-floating pack ice. Because of its abundance, relative accessibility, and ease of approach by humans, it is the best studied of the Antarctic seals. It is estimated that there are approximately 800,000 individuals today. Weddell Seal pups leave their mothers at the age of a few months. In those months they get fed by their mothers' warming and fat-rich milk. They soon leave when they are ready to hunt and are fat enough to survive in the harsh weather
The Weddell seal was discovered and named in the 1820s during expeditions led by James Weddell, the British sealing captain, to the parts of the Southern Ocean now known as the Weddell Sea.[3] However, it is found in relatively uniform densities around the entire Antarctic continent.