Climate change has now become one of the biggest threats to ecosystems globally, as global cycles that have helped species thrive for centuries have shifted. Birds in particular, for their elaborate ...

What really came first -- the chicken or the egg? Birds' reproductive biology is dramatically different from that of any other living vertebrates, and scientists have long wondered how and when the ...

All living things have limited energy and resources, and face trade-offs between competing priorities,” observed the study’s ...

"This Springer imprint is published by Springer Nature"--Title page verso. BIRDS copy has bookplate: Smithsonian Institution Libraries, Nada Kramar Endowment Income Fund. Avian primordial germ cells / ...

Unfortunately, this book can't be printed from the OpenBook. If you need to print pages from this book, we recommend downloading it as a PDF. Visit NAP.edu/10766 to get more information about this ...

As winged dinosaurs underwent a series of evolutionary changes during the transition into Aves, or birds, one pivotal transformation was the appearance of a single-ovary reproductive system. "The most ...