The fish, such as the goldsaddle goatfish and the Blacktip grouper, take the lead in deciding where the coalition will hunt, but the octopus is in charge of if, and when, an attack is launched.

Individuals of the day octopus (Octopus cyanea) sometimes team up with various fish species such as the blue goldsaddle goatfish (Parupeneus cyclostomus) to engage in collective hunting. Three ...

A day octopus socks a goldsaddle goatfish in waters near Eilat, Israel, on Oct. 17, 2018. Octopuses may punch a fish ally out of the way to capture prey ... but sometimes it's not clear why they ...