Wild Gray Seals Clap Their Flippers Underwater to Communicate, New Research Suggests
![Wild Gray Seals Clap Their Flippers Underwater to Communicate, New Research Suggests 2](https://i.kinja-img.com/gawker-media/image/upload/s--3oHK-7l4--/c_fit,fl_progressive,q_80,w_636/t5ag3dtfvsxmspw5ibxz.jpg)
Unprecedented video shows a male gray seal using its flippers to produce a loud sound underwater. Scientists say it could be a previously undocumented form of communication, in which the seals are using the sound to attract mates or ward off rivals.
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