Top predators in the Red Sea, geometric moray eels (Gymnothorax griseus) slither out of a hideout on the sea floor. In 2006, scientists discovered evidence that moray eels and groupers in the Red Sea have developed a behavior of hunting cooperatively, the first recorded behavior among fish. The grouper shakes its head to signal to the eel where prey it can't get to is hiding. The eel then captures it.
Fotograf David Doubilet' den
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