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BBC - Earth News

Garden snails are evolving slower metabolisms.

Natural selection is favouring snails with reduced metabolic rates, researchers in Chile have discovered.

It is the first time that evolution has been shown to select for this trait in individuals of any species.

Snails with lower metabolisms are at an advantage because they have more energy to spend on other activities such as growth or reproduction, the researchers say in the journal Evolution.

by Fran on Mon May 11th, 2009 at 02:28:26 PM EST
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