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In the Partnership of Octopus and Fish, a Marvelous Sign of Resilience.

“Crossing a phylum gap like this is almost like a human talking to a snail,” says Daniel Bayley, a marine biologist at University College London. “It’s amazing to watch.” Bayley and Amelia Rose of Oxford University observed octopuses working with brown-marbled grouper—and with peacock grouper and gold-saddle goatfish, too—in sunlit shallows off atolls in the northern Chagos Archipelago, a remote chain of islands in the Indian Ocean. The incidents caught their attention: while multispecies associations are not uncommon in the animal kingdom, it’s unusual to see such them between such different creatures. What’s more, this was a true collaboration.”

http://oceans.nautil.us/feature/665/in-the-partnership-of-octopus-and-fish-a-marvelous-sign-of-resilience