On the threshold of flight
10,000 Birds
JANUARY 20, 2015
Science 12 December 2014: 346 (6215), 1253293 [DOI:10.1126/science.1253293]. A better understanding of bird origins requires multifaceted and integrative approaches, yet fossils necessarily provide the final test of any evolutionary model. Erickson, and David J. Varricchio. An integrative approach to understanding bird origins.
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