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s normal repertoire, they were still influenced by the background vocalizations that they heard. Now this is probably extremely reasonable in the case of bats because bats roost in these caves with many hundreds of individuals…we believe that this process, which we call crowd vocal learning, because you learn from the entire crowd, is relevant for many other animals that live in crowded colonies. 在这里,我们表明,即使幼崽与他们的母亲接触到正常曲目,他们仍然受到他们听到的背景发声的影响.在蝙蝠的这种情况下,可能是非常合理的,因为蝙蝠在这些洞穴中栖息着......我们相信这个过程,我们称之为人群声乐学习,因为你从整个人群中学习,对许多其他动物也会出现类似情况 . As the researchers note in their paper, this sort of social learning is sometimes called culture. Even if you'

re living in a cave. 研究人员在他们的论文中指出,这种社会学习有时被称为 文化 ,即使你生活在一个山洞里,也会受到文化的影响和熏陶. 听力原文: Baby Bats Can Learn Different Dialects Bats are sophisticated communicators. And not just when they'

re in vampire form. New research finds that Egyptian fruit bats actually have regional dialects, depending on the bat chatter that surrounds them as they grow up. The study is in the journal PLOS Biology. [Yosef Prat et al, Crowd vocal learning induces vocal dialects in bats: Playback of conspecifics shapes fundamental frequency usage by pups] Among humans, one person'

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day. Wild populations of bats also display group-specific vocalizations. But how do these vocal characteristics arise? Do they reflect innate, genetic differences or are they learned? And if bat accents are acquired, who are these furry fliers imitating? Their parents? Or their roost-mates? To find out, Yossi Yovall at Tel Aviv University and his colleagues captured

15 pregnant fruit bats and divided them into three groups, each of which was housed in its own separate box. The mothers gave birth inside these boxes and their babies, called pups, lived there for a full year. During that time, the researchers exposed the pups to a select symphony of bat sounds. Fruit bats in the wild are reared in colonies that contain dozens to thousands of individuals, so they'

re used to being surrounded by a cacophony of calls and other vocal communiques. For one of the boxes, Yovall and his team exposed the young batlings to a selection of squeaks that were biased toward the higher frequencies. Pups in the second box heard lower-pitched peeps. And the third box got a random sampling of fruit bat hits that was heavy on the mid-range frequencies but also included those at either end of the aural spectrum. And what we found is that they were influenced by the playback that they heard. Yossi Yovall. So the control group was using a vocal repertoire that was identical to their mothers and identical to fruit bats in the colony here in Israel. But the two manipulated groups were using different dialects...we actually were able to create three different groups of fruit bats with three different dialects in the lab. Of course, birds are famous for their songs. Which the males learn from tutors, typically their dads. But Yovall says when it comes to vocal learning, bats march to a different drummer. Here we show that even though the pups were with their mothers, they were exposed to their mother'

s normal repertoire, they were still influenced by the background vocalizations that they heard. Now this is probably extremely reasonable in the case of bats because bats roost in these caves with many hundreds of individuals…we believe that this process, which we call crowd vocal learning, because you learn from the entire crowd, is relevant for many other animals that live in crowded colonies. As the researchers note in their paper, this sort of social learning is sometimes called culture. Even if you'