Reptile Scales, Bird Feathers, Mammal Hairs Evolved from Common Ancestor After All (2 of 9) (IMAGE)

American Association for the Advancement of Science (AAAS)

Reptile Scales, Bird Feathers, Mammal Hairs Evolved from Common Ancestor After All (2 of 9)

Caption

An heterozygous mutant bearded dragon (it received only one copy, either from its mother or from its father, of the mutated EDA gene): its scales are reduced in size. This material relates to a paper that appeared in the June 24, 2016, issue of Science Advances, published by AAAS. The paper, by N. Di-Poï at University of Geneva in Geneva, Switzerland, and colleagues was titled, "The anatomical placode in reptile scale morphogenesis indicates shared ancestry among skin appendages in amniotes."

Credit

Copyright Michel C. Milinkovitch 2016

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