This is a hydra, an ancient sea creature that flourishes today. (Credit: Todd Oakley, UCSB)From Science Daily:
Science Daily (Mar. 12, 2010) — By studying the hydra, a member of an ancient group of sea creatures that is still flourishing, scientists at UC Santa Barbara have made a discovery in understanding the origins of human vision.
The finding is published in the Proceedings of the Royal Society B, a British journal of biology.
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