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Science 6 July 2001:
Vol. 293. no. 5527, pp. 29 - 31
DOI: 10.1126/science.293.5527.29b
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News of the Week

MARINE MAMMALS:
By a Whisker, Harbor Seals Catch Their Prey

Carl Zimmer

When mammals colonized the ocean some 50 million years ago, some species of dolphins and whales evolved echolocation, which allows them to "see" with their ears. How other marine mammals manage to hunt without echolocation has long been a mystery, though, as the sharp vision their ancestors had evolved on land was of little use in the ocean's murky darkness. On page 102, researchers report that part of the answer has been hiding in plain view: They use their whiskers.

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Science. ISSN 0036-8075 (print), 1095-9203 (online)