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蜂鸟可以降低体温减缓代谢 - 站长搜索
首页 > 资讯列表 > 科技资讯 >> 趣科技

蜂鸟可以降低体温减缓代谢

趣科技 2020-11-06 09:22:08 转载来源: 科技日报

在脊椎动物中,蜂鸟有着惊人的高代谢率,为此它们需要持续不断地进食。但是在寒冷、黑暗的夜晚,由于无法正常捕食,蜂鸟们采取了另一种生存策略——降低体温,从而降低代谢率

在脊椎动物中,蜂鸟有着惊人的高代谢率,为此它们需要持续不断地进食。但是在寒冷、黑暗的夜晚,由于无法正常捕食,蜂鸟们采取了另一种生存策略——降低体温,从而降低代谢率。

在一项发表于《生物学通讯》的研究中,美国科学家对安第斯山脉的不同蜂鸟物种进行了分析,他们发现黑辉尾蜂鸟在夜间的体温可以降至3.3℃,这是观测到的鸟类和非冬眠哺乳动物中的最低体温。

此外,其它蜂鸟平均也可以将体温降至5℃—10℃,从而将心率从每分钟超过1000次降至50次。

标签: 蜂鸟 可以 降低 体温 减缓 代谢


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