Tuesday 12 December 2017
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5 days ago

Climate change: can hummingbirds take the heat?

Extreme heat sometimes forces hummingbirds to seek shade instead of foraging for food, researchers said Wednesday, warning that global warming could test the tiny birds capacity to adapt. With hearts beating more than 1,000 times a minute, hummingbirds need to feed constantly, which means they can ill afford to spend time dodging sunshine, according to a report in the journal Royal Society Open Science. They cannot go without eating for even a part of the day, said lead author Donald Powers, a profes

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