Hank introduces us to the relatively new field of evolutionary developmental biology, which compares the developmental processes of different organisms to determine their ancestral relationship, and to discover how those processes evolved. Also fruit flies with eyes on their legs and chickens with teeth!

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References for this episode can be found in the Google document here:

Table of Contents
1) EVO/DEVO - 00:51
2) Developmental Regulatory Genes - 2:00
3) Gap Genes - 2:39
4) Homeobox / HOX Genes - 2:50
5) Messed-Up Experiment - 6:16
6) EVO/DEVO & Evolution - 7:26
a) Chickens with teeth - 8:14

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