Which Came First, Feather or the Bird?

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Date: 2013-09-20 16:17:50 Biology Zoology Bird anatomy Dromaeosaurs Coelurosaurs Feather Pennaceous feather Down feather Bird flight Feathered dinosaurs Feathers Herpetology		Which Came First, Feather or the Bird? Add to Reading List Source URL: prumlab.yale.edu Download Document from Source Website File Size: 797,82 KB Share Document on Facebook

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