Advances in scientific technology are upending what we know about pterosaurs, the reptilian close cousins to dinosaurs who were the first of Earth’s vertebrates to achieve flapping-powered flight.
Feather microstructures can remarkably change the appearance of red plumage without any corresponding changes in either pigment concentration or molecule types Adult male Brazilian tanager ...
We heard a thin, high-pitched sound repeated several times while walking up a snow-covered hill in a spruce forest. Could it be a golden-crowned kinglet surviving in these sub-freezing temperatures?
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