John G. Maisey

Mar. 06, 2009

Oldest Fossil Brain Discovered

Scientists have found a 300 million year old fossil shark ancestor with an unusual feature -- fossilized brain tissue within the creature's skull.

brain, fossil, fish

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Michael Pollan Talks Plants and Food

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Myths and Tips on Keeping Your Cool This Summer

Think caffeine dehydrates you? Or that you can't get too much water on a hot day? Douglas Casa, of the Korey Stringer Institute, sets the record straight.

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