Talk:Arthropod head problem

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A fact from Arthropod head problem appeared on Wikipedia's Main Page in the Did you know column on July 16 2007. A record of the entry may be seen at Wikipedia:Recent additions/2007/July.

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Diagrams

The fossil evidence and different theories of Cambrian arthropod head segmentation sections could really use some diagrams. --Savant13 (talk) 18:48, 2 May 2008 (UTC)[reply]