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Old 05-04-2011, 02:45 PM   #26
Frieda
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Join Date: Sep 2002
Location: The Netherlands
Posts: 19,502
Charles Q. Choi

for National Geographic News

Published May 2, 2011

Sea urchins may use the entire surfaces of their bodies—from the ends of their "feet" to the tips of their spines—as huge eyes.

read on:
http://news.nationalgeographic.com/n...ience-animals/
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