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机智的孵蛋秘诀

The clever way this tiny bird warms her nest

The bird is a gold crest.
这是一只金冠戴菊莺
It is the smallest bird in Europe.
它是全欧洲体型最小的鸟类
She weighs no more than a teaspoon of sugar.
其体重只不过是一茶匙糖的重量
Her eight eggs may look tiny too,
它产下的八枚蛋可能看起来很小
but in relation to her, they’re huge.
但和其本身相比 这些蛋可不算小了
Each one weighs 16% of her body weight.
每一枚蛋都重达戴菊莺本身体重的16%
In human terms,
就人类而言
that would be like giving birth to eight whopping 18-pound babies.
这就好比产下了8个18磅重的巨婴
But her tiny body can only cover
金冠戴菊莺体型小巧
two or three of her large eggs at any one time.
每次身体能覆盖到的蛋只有两到三枚
Bird embryos develop at
其幼鸟胚胎发育需要的温度
around 98.6 degrees,
大约是98.6华氏度
so how will she keep them all warm?
它是如何让蛋都达到孵化温度的呢?
Well, the secret of her success is revealed
我们关掉普通摄像机
when we turn our standard camera off
打开了热敏摄像机
and our thermal camera on.
继而发现了戴菊莺成功的秘密
She has hot legs.
金冠戴菊莺腿部温度很高
She’s pumping extra blood through them to radiate heat,
它将多余的血液输送到腿部发出热量
and now her actions have been caught on film for the first time.
人们首次拍摄下金冠戴菊莺的这种行为
No other bird on Earth is known to do this.
据了解 其他的鸟类都是没有这种行为的

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视频概述

欧洲最小的鸟——金冠戴菊,如何用只能覆盖2-3个蛋的瘦小身体成功孵化出8个蛋。

听录译者

收集自网络

翻译译者

翻译爱好者山人乙

审核员

审核员HJ

视频来源

https://www.youtube.com/watch?v=IY_s62vTmYs

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