This entry was posted on April 9, 2011 at 10:49 PM and is filed under Evolution, Science. You can follow any responses to this entry through the RSS 2.0 feed.
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One Response to “A picture that should be in every biology textbook”
April 9, 2011 at 10:51 PM |
Read more: http://members.shaw.ca/Limulus/files/chr2/