News From the Field
Most Vertebrates--Including Humans--Descended From Ancestor With Sixth Sense
October 11, 2011
A study in the Oct. 11 issue of Nature Communications that caps more than 25 years of work finds that the vast majority of vertebrates--some 30,000 species of land animals (including humans) and a roughly equal number of ray-finned fishes--descended from a common ancestor that had a well-developed electroreceptive system.
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