giovedì 2 luglio 2015

NYT Science: The Cambrian Explosion’s Strange-Looking Poster Child

The Cambrian Explosion’s Strange-Looking Poster Child
By CARL ZIMMER

For years, scientists struggled to explain the mysteries of a worm named Hallucigenia, but two new studies explain some of its quirks, and found it some cousins.

Published: July 7, 2015 at 06:00AM

via NYT Science http://ift.tt/1UbLAZz