A new study reveals that Octopus cyanea, or the big blue octopus, hunts in groups with various fish species, challenging the belief that octopuses are solitary hunters. Published in Nature, the research shows these intelligent cephalopods organize hunting decisions and even punch fish to maintain order. Researchers tracked 13 octopuses over 120 hours off Eilat, Israel, observing them in multi-species hunting groups. This behavior suggests octopuses have complex social lives and intelligence markers previously thought unique to vertebrates. Lead author Eduardo Sampaio notes this indicates deep-rooted sociality in the evolutionary tree.