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Life's Greatest Inventions |
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| Fri, April 08 2005 | 1:17PM | PermaLink |
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This is a neat article. Newscientist talks about life's top
10 greatest inventions.
The first eyes appeared about 543 million years ago - the very beginning
of the Cambrian period - in a group of trilobites called the Redlichia. Their
eyes were compound, similar to those of modern insects, and probably evolved
from light-sensitive pits. And their appearance in the fossil record is strikingly
sudden - trilobite ancestors from 544 million years ago don't have eyes.
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FULL STORY @
Archived from NEWSCIENTIST
http://www.newscientist.com/channel/life/mg18624941.700
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