August 03, 2004
Speaking of Lying in the Sun...

New Scientist is carrying this story summarizing a new theory about why our earliest fishy ancestors hauled themselves up on land. It suggests that it was all about solar energy. The reasoning goes that simply by lying in the tropical Devonian sun (some 365 million years ago) these creatures could double their metabolic rate, essentially for free. This would in turn make them far more effective predators, and up the ladder they (we, us) went.

Posted by scott at August 03, 2004 03:22 PM

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