Anna's hummingbird flying in the experimental setup, drinking sugar water from a fake flower. Credit: Lentink Lab / Stanford University. Anna's hummingbird flying in the experimental setup, drinking ...
Claudio Mello was conducting research in Brazil’s Atlantic Forest about 20 years ago when he heard a curious sound. It was high-pitched and reedy, like a pin scratching metal. A cricket? A tree frog?
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