What Is a Group of Octopi Called?

Octopuses are marine invertebrates known for their intelligence and unique physical attributes. These soft-bodied mollusks, related to snails and clams, possess eight arms lined with suckers, a bulbous head, and two highly developed eyes. They are found in every ocean, inhabiting diverse environments from shallow coastal waters to the deep sea.

Octopus Social Habits

Most octopus species are largely solitary creatures, spending the majority of their lives alone. This solitary nature is influenced by their territorial behavior and hunting strategies. Octopuses typically establish and defend individual dens, often small holes or crevices in rocks and coral. As ambush predators, their hunting style does not necessitate group cooperation.

Octopuses perceive other organisms, including other octopuses, primarily as either potential prey or predators. Interactions between individual octopuses are generally brief and cautious, often limited to mating encounters.

The Collective Noun for Octopi

There is no single, universally accepted collective noun for a group of octopuses. Octopuses rarely congregate in ways that would warrant a specific collective term. While some sources playfully suggest terms like “flotilla,” “squad,” “knot,” or “consortium,” these are not scientifically or colloquially established.

The most common and grammatically correct plural form of octopus is “octopuses.” While “octopodes” is also technically correct, “octopi” is widely used but etymologically inaccurate.

Instances of Octopus Aggregation

Octopuses may temporarily aggregate under specific circumstances. Mating rituals are a primary example, where males and females briefly come together to reproduce. Females often guard their eggs in isolation after mating, sometimes for weeks or months, during which they typically do not eat and eventually die.

Temporary aggregations also occur in areas with abundant food resources, where multiple octopuses might gather to feed. A notable exception to the solitary rule is the Larger Pacific Striped Octopus, which exhibits unusually social behaviors. This species has been observed cohabiting in groups of up to 40 individuals and engaging in intimate beak-to-beak mating, even sharing dens and meals.

Large gatherings, such as the “Octopus Garden” off the coast of California, represent significant aggregations of pearl octopuses for breeding purposes, drawn to warm thermal springs that accelerate egg development. These instances, however, are typically tied to specific life stages or environmental conditions, rather than stable social structures.