DN Speak Daily
Truth fears no trial.
Thursday, April 14, 2016
Did all animal life on Earth begin with a sea sponge?
Genetic analysis of 640-million-year-old rocks suggests that the sea sponge may have been the first animal to develop on Earth.
http://www.csmonitor.com/Science/2016/0226/Did-all-animal-life-on-Earth-begin-with-a-sea-sponge
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