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Strange Findings on Comb Jellies Uproot Animal Family Tree

The new study on ctenophores, such as the American comb jelly above, "really shakes up how we think animal complexity evolved." A close look at the nervous system of the gorgeously iridescent animal known as the comb jelly has led a team of scientists to propose a new evolutionary history: one for the comb jelly, and one for everybody else.

http://news.nationalgeographic.com/news/2014/05/140521-comb-jelly-ctenophores-oldest-animal-family-tree-science