When researchers found a hummingbird with glittering gold feathers, they initially thought a new species had been discovered, but what they actually found was far more unusual. The bird — found in ...
Hummingbirds are remarkable for many reasons. Hummingbirds are the only bird that can fly backwards with wings that beat 60 to 80 times per second, which works out to around 720 to 5,400 times per ...
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