I find this so fascinating: Moray eels and Grouper fish will team up to catch fish. Groupers hunt in open water; Moray eels trap prey in crevices. When a Grouper loses a fish in a crevice, it will go "tell" an eel and then lead it to the crevice where sometimes the eel will eat the fish and other times just flush it out for the Grouper.
It's the first time species have interacted to hunt, save humans and dogs or humans and birds.
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