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Fossil barnacles, the original GPS, help track ancient whale migrations

March 25, 2019

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Whale barnacles add new shell throughout the year, which has been shown to reflect, through oxygen isotope ratios, the conditions of the seas through which the whale traveled. University of California, Berkeley, paleobiologists have now shown that fossilized whale barnacles retain this isotopic signature, revealing the ocean conditions through which whales traveled millions of years ago. This could help reveal details about whale evolution and ancient migration routes. Full Story

University of California, Berkeley

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