Start United States USA — IT Octopuses work together with fish to hunt—and the way they share decisions...

Octopuses work together with fish to hunt—and the way they share decisions is surprisingly complex

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A new study published in Nature Ecology & Evolution lifts the veil on what happens when octopuses and fish hunt together. As it turns out, this cross-species relationship is more complex than anyone expected.
A new study published in Nature Ecology & Evolution lifts the veil on what happens when octopuses and fish hunt together. As it turns out, this cross-species relationship is more complex than anyone expected.
Animals of the same species often cooperate—work together to reach some kind of goal. But it’s relatively rare to find cooperation between individuals from different species.
A classic example you’ll be familiar with is the close relationship between dogs and humans, whether in the context of herding sheep or hunting. In these situations, the dog and the human work together to achieve a goal.
That’s mammals. But underwater species also sometimes cooperate. A nice example is the joint hunting behavior of moray eels and grouper. The grouper approaches the moray and signals that it wishes to hunt. The eel responds in kind, and off they go.
During these hunting forays, the grouper uses signals to indicate where prey may be hidden in the coral matrix. It’s a synergy made in heaven: the eel can scare the prey fish from hiding places among the coral, while the grouper patrols over the top. There is literally no place for prey to hide.

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