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科学美国人60秒: 山公的近亲也会宣布类似的叫声

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Monkey Cousins Use Similar Calls

山公的近亲也会宣布类似的叫声

In the wild, monkeys need to keep their eyes peeled for all sorts of dangers. Like leopards and eagles and snakes. But the green monkeys studied by Julia Fischer of the German Primate Center have an additional challenge: they also have to scan the skies for drones.“Why did we fly a drone over green monkeys, one may ask.”One may indeed. The answer is that Fischer and her colleagues are interested in how primates communicate.

在野外,山公需求警觉各种风险。像豹子、老鹰和蛇。可是德国灵长类动物研讨中心的茱莉亚·费舍尔研讨的绿山公还有一个额定的应战:它们还必须扫描天空,寻觅无人机。有人或许会问,咱们为什么要让无人机飞过绿山公。”一位或许的确。答案是费舍尔和她的搭档们对灵长类动物怎么沟通很感兴趣。

In a classic study back in the 1980s, scientists showed that East African vervet monkeys produce alarm calls that are specific for the predators they encounter. So, for example, vervet monkeys hearing a leopard alarm [clip] might scurry up a tree, whereas the eagle call [clip] sends them running for cover under the closest shrub.

在上世纪80年代的一项经典研讨中,科学家们发现东非vervet山公会宣布特定于它们遇到的捕食者的警报。例如,vervet monkeys听到豹纹警报(片段)或许会敏捷爬上树,而eagle call(片段)会让它们跑到最近的灌木丛中寻觅保护。

Now, the green monkeys that live in Senegal share a similar system to warn of leopards and snakes. But they aren’t known to raise a ruckus in response to birds of prey.“And so therefore we decided to fly a drone over them.”The researchers treated 80 green monkeys to a show of drones. How did the animals react to this unfamiliar aerial intruder?“The monkeys did respond. They responded with alarm calls. [clip] And they responded by uh running away.”

现在,生活在塞内加尔的绿山公具有类似的体系来正告豹子和蛇。但人们不知道它们对猛禽的反响会引起骚乱。所以咱们决议用无人机飞越它们。研讨人员让80只绿山公观看无人机扮演。动物们对这个生疏的空中入侵者有何反响?山公们的确做出了回应。他们以报警电话回应。他们的反响是逃跑。”

Here’s where things get really interesting: the calls the green monkeys made after spotting the drones were different from the ones they use to signal leopards [clip] or snakes [clip]. But even more intriguing:“And when we did an acoustic analysis these alarm calls [clip] were almost eerily similar to the ones of the east African vervets. [clip]”The findings are described in the journal Nature Ecology and Evolution. [Franziska Wegdell, Kurt Hammerschmidt and Julia Fischer, Conserved alarm calls but rapid auditory learning in monkey responses to novel flying objects]

风趣的是:绿山公发现无人机后宣布的叫声与它们用来给豹子(编排)或蛇(编排)发信号的叫声是不同的。但更风趣的是:“当咱们进行声学剖析时,这些警报信号(片段)简直与东非vervets的警报信号惊人地类似。研讨结果宣布在《自然生态与进化》杂志上。

The fact that the two monkey species seem to speak the same language, if you will, even though they diverged from their last common ancestor some 3 million years ago, suggests that this vocal warning system is hard-wired.So if you hear a monkey go [clip], watch out for a hungry bird. Or check to see if you got a package delivered.

事实上,这两种山公好像说着相同的言语,即便它们与300万年前的最终一个一起先人有所不同,这表明这种声响正告体系是与生俱来的。所以,假如你听到一只山公在叫,留神一只饥饿的小鸟。或许检查一下你是否收到了包裹。

Monkey Cousins Use Similar Calls

In the wild, monkeys need to keep their eyes peeled for all sorts of dangers. Like leopards and eagles and snakes. But the green monkeys studied by Julia Fischer of the German Primate Center have an additional challenge: they also have to scan the skies for drones.“Why did we fly a drone over green monkeys, one may ask.”One may indeed. The answer is that Fischer and her colleagues are interested in how primates communicate.

In a classic study back in the 1980s, scientists showed that East African vervet monkeys produce alarm calls that are specific for the predators they encounter. So, for example, vervet monkeys hearing a leopard alarm [clip] might scurry up a tree, whereas the eagle call [clip] sends them running for cover under the closest shrub.

Now, the green monkeys that live in Senegal share a similar system to warn of leopards and snakes. But they aren’t known to raise a ruckus in response to birds of prey.“And so therefore we decided to fly a drone over them.”The researchers treated 80 green monkeys to a show of drones. How did the animals react to this unfamiliar aerial intruder?“The monkeys did respond. They responded with alarm calls. [clip] And they responded by uh running away.”

Here’s where things get really interesting: the calls the green monkeys made after spotting the drones were different from the ones they use to signal leopards [clip] or snakes [clip]. But even more intriguing:“And when we did an acoustic analysis these alarm calls [clip] were almost eerily similar to the ones of the east African vervets. [clip]”The findings are described in the journal Nature Ecology and Evolution. [Franziska Wegdell, Kurt Hammerschmidt and Julia Fischer, Conserved alarm calls but rapid auditory learning in monkey responses to novel flying objects]

The fact that the two monkey species seem to speak the same language, if you will, even though they diverged from their last common ancestor some 3 million years ago, suggests that this vocal warning system is hard-wired.So if you hear a monkey go [clip], watch out for a hungry bird. Or check to see if you got a package delivered.


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