Aposematic Sound
阅读材料
Aposematic Sound
Aposematic Sound Certain prey animals produce toxic chemicals in their bodies, which may make them inedible or bad-tasting. This can help protect these prey animals from predators, but it is most effective if potential predators know in advance that the prey animals are toxic, so they will not even try to eat them. Thus, some prey animals have evolved ways of signaling their toxicity to predators-sometimes by making sounds. This is known as aposematic sound. A predator that is unfamiliar with the warning signal will attack the prey, but once it learns to associate the sounds with a bad taste, it will avoid the prey.
听力材料
Now listen to part of a lecture from a biology class. So a good example of this involves insects, a type of moth called a Tiger Moth, specifically. Now these Tiger moths are poisonous and have a bad taste if eaten, and they fly around at night and would be easy for bats to catch. Bats fly around at night searching for insects to eat, and the tiger moths are flying around at the same time. So scientists have done studies, and they found that these Tiger moths have developed these specific noises in a range that bats can hear, these sharp clicking noises that have a distinctive sound and pattern, and they produce these clicking noises when bats are nearby. And part of the study was an experiment in which the scientists put bats that were not familiar with the clicking noises of Tiger moths together with the moths, and observed them over several nights. Initially, the bats captured the moths and experienced the bitter taste spitting out the moths. This went on for a few nights, with the bats capturing fewer moths day after day, until they finally avoided the moths altogether.
问题
Explain how the example in the lecture illustrates the concept of aposematic sound.
我的笔记 编辑笔记
-
分数最高最新
-
The passage is about aposematic sound, a warning signal produced by certain toxic prey animals to alert predators to their inedibility or bad taste. Predators learn to associate the sound with unpleasant experiences and avoid the prey. In the listening, the professor uses tiger moths as an example to illustrate this concept. Tiger moths, which are poisonous and have a bad taste, produce distinctive clicking sounds that bats can hear. At first, bats unfamiliar with these sounds catch the moths and experience their bad taste, prompting them to spit the moths out. Over several nights, the bats learn to associate the clicking noises with the unpleasant experience and gradually avoid the moths altogether. This behavioral adaptation shows how aposematic sound serves as an effective defense mechanism, preventing predation by warning predators in advance of the moths' toxicity.
-
-
会员福利内容准备中，丰富答题思路即将上线
题目讨论
如果对题目有疑问，欢迎来提出你的问题，热心的小伙伴会帮你解答。