BRITISH ANTARCTIC SURVEY / SCIENCE PHOTO LIBRARY BRITISH ANTARCTIC SURVEY / SCIENCE PHOTO LIBRARY
Southern elephant seal (Mirounga leonina) male (bull) resting in clumps of tussac grass (Poa or Parodiochloa flabellate). The male has the trunk- like proboscis that gives this huge seal its name. It acts as a resonator to the roar given by a male during fights to win breeding rights over a harem of females. Most of its time is spent hunting fish and squid in subantarctic waters. The male comes ashore to breed and moult. Only the largest males will breed successfully, reaching over 5 metres in length and 4 tonnes in weight. Photographed on Bird Island, South Georgia, southern Atlantic Ocean.
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