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是原文吗?
https://www.sciencenews.org/article/moths-mimic-dont-eat-me-sounds?tgt=nr
https://forum.chasedream.com/thread-726515-1-1.html
Moths mimic 'Don't eat me' sounds
BY SUSAN MILIUS
2:10PM, JUNE 19, 2007
另有一篇新的说tigermoth(一种蛾)unpalatable(味道不好的)to bats。bats会捕食moth,tigermoth通过clicking来提醒幼虫,通过什么方式(生词太多看不懂,猜测是指放出毒素的意思)来躲避bats。而其他种类moth(应该是对bats没有毒)则会模仿这种click来躲避bats,这种现象被称为defensive mimic
Some moths defend themselves from hungry bats by mimicking the sounds of other, bad-tasting moths, according to new tests. This trick represents the first confirmed acoustic example of classic defensive mimicry.
The study's unpalatable moths, members of the tiger moth family, pick up noxious chemicals from plants that they feed on as caterpillars. A bat unwise enough to catch one of these moths typically spits it out fast.
When a bat swoops near, tiger moths make bursts of "click-click-click" sounds. A young bat hearing clicks and then snagging a vile mouthful learns to avoid the moths, according to earlier work by William E. Conner at Wake Forest University in Winston-Salem, N.C.
To see whether other moths could protect themselves by mimicking those clicks, Jesse Barber, also at Wake Forest, raised bats from babyhood in large, netted enclosures where he could control when they first encountered various prey.
第二段就说某个人进行了 2个实验第一个就是将tiger moth从小就喂养然后和10只bat 放一起 5天过后所有moth都可以骗过bat吧这个人又换了一种moth和tigermoth特点一样的发现刚放进去的时候这种moth不能骗过bat 但过段时间大多数都能第二个实验是将另外一种和tigermoth 特点不一样的moth放来和bat一起发现这种moth 是通过模仿对bat有害的或者bat觉得不美味的动物的声音来避免被捕食的
At some point, he included clicking, unpalatable tiger moths among the nightly flying snacks. After 5 nights, all the bats had learned to avoid this species. Then Barber substituted a different tiger moth species. A few bats sampled the newcomers before avoiding them, but the majority avoided them from the outset.
In another experiment, Barber offered milkweed tussock moths to 10 bats. These moths click, but they’re palatable. Three bats discovered that the new moths were edible, but the other seven didn’t catch on.
That means clicking works both a Müllerian mimicry (two unpalatable species benefiting by making similar sounds that predators can learn by catching either one) and Batesian mimicry (edible prey borrowing an “unpalatable” signal), says Barber.
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