Octopus "punch" fish while hunting to ensure that they get a their share of the food. Octopuses work with small groups of fish (often Groupers) to find and access prey on the reef. Just like kids, sometimes those groups break down a bit and don't work as well together as they'd like. Sometimes a fish is over zealous and eats something the octopus wanted - and that's when they might get punched.
Octopuses are generally not things we keep in our reef tanks - they really belong in the ocean unless you're willing to set up a tank specifically for them to meet their needs.
Also, today while working on this video I learned that the plural of Octopus is not Octopi - because the root word Octopus is Greek, not Latin, the plural is actually Octopuses. Sorry for being wrong in the video!
Octopuses punch fishes during collaborative interspecific hunting events
Eduardo Sampaio, Martim Costa Seco, Rui Rosa, Simon Gingins
First published: 18 December 2020 https://doi.org/10.1002/ecy.3266
Cooperation is ubiquitous in nature, and occurs at all levels of biological complexity, providing immediate direct benefits and/or future indirect benefits to participating partners (Lehmann and Keller 2006, Bshary and Bergmüller 2008).
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