DOI：10.1126/science.aad5709 作者：Amy McDermott
摘要 : 试想一下，当你想要让孩子注意时，你会叫他们，但却不是叫他们的名字，而是叫你自己的名字。
Imagine if, when you wanted to get your kid’s attention, you called them—not by their name—but by your own. It turns out that bottlenose dolphin mothers do just that. They use “signature whistles,” high-pitched, individualized calls, which function like human names. Scientists have known about these whistles since the 1990s. But now for the first time, they have confirmed that moms use the whistles to call their babies home. To do so, behavioral biologists used hand and verbal signals to ask a captive bottlenose dolphin, Merina, to retrieve either a toy or her calf, Windley, from a few meters away, in a seawater lagoon. When Merina retrieved a toy, she whistled in just three of 29 trials. But when the mother dolphin went to retrieve her calf, she whistled in over 30 of 50 trials, the group reports in the May 2016 Behavioural Processes. Later spectrogram analysis confirmed they were signature whistles, produced through tissue vibrations near the blowhole. While the study is the first to confirm this link between dolphin motivation and communication, some ecologists question its validity, since the dolphins were artificially separated and the female was directed to behave a certain way. Now, if only we could ask Merina and Windley what they think!
来源： Science 浏览次数：0