《科学》[Science]13年3月1日出版pdf全文

nero1981

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COVER The rock pigeon (Columba livia) exhibits spectacular variation among more than 350 different domestic breeds. The adult male Old Dutch capuchine shown here is one of many breeds with a crest of reversed feathers on its head and neck. See page 1063 for a description of the genetic origins of the head crest and the relationships among breeds. For the story behind the cover, go to http://scim.ag/cov6123. Photo: Sydney Stringham
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