Hummingbirds use the hibernation-like state of torpor in varying ways, depending on their physical condition and what is happening in their environment, according to new research. Hummingbirds have ...
No bigger than a human thumb, the Volcano hummingbird exists only in the Talamanca Mountains. But their appetite is anything but small, as they must replenish 12,000 calories a day from the tiny ...
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