Groupers hunting in the wild

[Geraud]

As groupers are big fish, they cannot track their preys into caves, holes, etc. So they associate themselves with eels, squids, humpback wrasses.

Scientists have recently discovered that they have a way to communicate with their associates, as well as showing them where a prey is hiding.

http://phenomena.nationalgeographic...tures-to-recruit-morays-for-hunting-team-ups/