Animal evolution: Hot start, followed by cold shock

via Principia Scientific International
http://ift.tt/1kjWLPW

The initial phases of animal evolution proceeded faster than hitherto supposed: New analyses suggest that the first animal phyla emerged in rapid succession – prior to the global Ice Age that set in around 700 million years ago. The fossil record reveals that almost all of the animal phyla known today had come into existence […]

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via Principia Scientific International http://ift.tt/1kjWLPW

June 16, 2017 at 07:40AM