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These Hummingbirds Take Extreme Naps. Some May Even Hibernate.

作者:admin 2020-09-10

The sparkling violetear, one of six species of hummingbirds whose temperature and weight at night as they slept were examined by researchers in a new study.Credit...Gabbro/AlamyBy Veronique GreenwoodSept. 8, 2020Hummingbirds live a life of extremes. 阅读全文