How Did the Turtle Get Its Shell? (from http://www.crev.info/)

How Did the Turtle Get Its Shell?   07/10/2009     July 10, 2009 — The cover story of Science this week is about turtle evolution.  The caption on the cover illustration, which compares the skeleton of a turtle, chicken and mouse, reads, “The turtle body plan is unusual in that the ribs are transformed into a carapace,Continue reading “How Did the Turtle Get Its Shell? (from http://www.crev.info/)”