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2 posts tagged with urchins. (View popular tags)
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I have no eyes and I must see!

Sea urchins do not have eyes, yet appear to be able to see where they are going. One posible answer: they may use the entire surface of their bodies as a compound eye.
posted by Artw on Feb 7, 2010 - 31 comments

Homeless street kids in 3rd world countries adapt to survive and are actually healthier and more likely to survive than are their peers who grow up in poor but intact families in agricultural villages. Experts confounded.
posted by stbalbach on May 4, 2002 - 7 comments

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