NATURAL HISTORY MUSEUM, LONDON / SCIENCE PHOTO LIBRARY NATURAL HISTORY MUSEUM, LONDON / SCIENCE PHOTO LIBRARY
Weddell seal (Leptonychotes weddellii) skull. Specimen collected by Robert Falcon Scott's British Antarctic Expedition 1910-1913, also known as the Terra Nova expedition. The Weddell seal is found in coastal areas of the Antarctic mainland and some sub-Antarctic islands. It relies on holes in the ice for breathing and accessing water, and uses its teeth to create the holes and keep them open.
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