Fighting for Females: The Evolution of a Hummingbird

November 4, 2014 10:03 PM

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A male long-billed hermit (Phaethornis longirostris) shows off his pointy beak, which he uses as a weapon during territorial disputes. (Photo by Maxime Aliaga)

Tiny, swift, and iridescent, hummingbirds dart around flowers and feeders, sipping nectar with their seemingly delicate beaks.

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