The Left Recurrent Laryngeal Nerve
Channel: EvoBiologist
Date: 2009-06-19

Discussion of a classic biological "design flaw" that provides solid evidence for common descent.

Diagrams are from Jerry Coyne's "Why Evolution is True" and the 3rd edition of the textbook "Evolution" by Mark Ridley.  The giraffe image was downloaded from www.giraffes.org

All images are legally used under "Fair Use" for non-profit educational purposes.