Most vertebrates -- including humans -- descended from ancestor with sixth sense
Tuesday, October 11, 2011 - 16:30
in Paleontology & Archaeology
A new study 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.