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How do you learn to defend yourself from a predator?
你如何学会保护自己免于捕食者捕食?
Well, you watch your friend get eaten of course.
好吧,你当然是通过看到自己的伙伴被吃掉。
It might sound incredibly morbid.
那或许听起来非常病态。
But scientists think this might be the way to rebuild the population in some Australian mammals.
但是科学家认为这或许是恢复澳大利亚一些哺乳类动物数量的方法。
Rebecca West, an ecologist at the University of New South Wales told the Scientific American that when studying burrowing bettongs, tiny marsupials resembling rats,
新南威尔士大学生态学家丽贝卡•韦斯特告诉《科学美国人》,当研究小型有袋类鼠类——穴居鼠袋鼠时,
researchers noticed that they did not remotely hesitate when approached by predators.
研究员注意到当捕食者靠近时,它们毫无踌躇之态。
So to help them survive, researchers decided to use a little tough love by putting them in a bettong boot camp.
所以为了帮助它们生存下去,研究员决定采用一个略显艰难的爱的方式,把它们放在一个鼠袋鼠改造营。
A part of the research project Wild Deserts, West and a team of researchers exposed the tiny mammals to feral cats in a fenced area,
这个研究一部分的野外沙漠计划中,韦斯特和一队研究员在一个围栏区将小型哺乳类动物——鼠袋鼠暴露在野猫面前,
where another group of bettongs watched.
另一群鼠袋鼠就在那看着。
And well, you can guess what they saw.
好吧,你可以猜到它们看到了什么。
The study concluded that the onlooking animals did generally become more wary of predators and they are passing that trait on to their babies.
该项研究得出结论,旁观的动物确实通常会变得对捕食者更加警惕,而且它们将该特征传给它们的下一代。

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Question:
How do the bettongs learn to defend themselves from a predator?
A  watch their friend get eaten
B  live in one nature reserve
C  do nothing
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