Diving Depths of the Weddell Seal

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Science  17 Jul 1964:
Vol. 145, Issue 3629, pp. 292
DOI: 10.1126/science.145.3629.292


Dives as deep as 350 meters have been recorded for the Weddell seal in the waters of McMurdo Sound, Antarctica. It is suggested that Weddell seals possess a well-developed navigational system which enables them to swim long distances under thick ice shelves where light and breathing holes are limited.