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....
