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The eyes have it

Henry Gee

Nature, 1998, vol. 392, issue 6677, 651-651

Abstract: Life on land stemmed from life in the sea, but many creatures have since taken the reverse route. A big problem to be overcome was that the body fluids of terrestrial animals are much less salty than sea water. Water can be replaced by drinking sea water, but the excess salt has to be excreted. A newly described fossil turtle not only extends the fossil record of marine turtles back to 110 million years ago, but displays evidence that it had massive salt-excreting lachrymal glands that were its passport back to the sea.

Date: 1998
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DOI: 10.1038/33534

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