The females of some gregarious species work together to protect each other's eggs.

These are very gregarious species, always found in noisy groups.

This is a very gregarious species, always found in noisy groups.

Its five or more, highly gregarious species are known as sheep.

Group size is an important characteristic of the social environment of gregarious species.

Just the two of them in a world where nobody else had ever existed and Man was a gregarious species.

This is a gregarious species, with breeding colonies sometimes including up to 200 individuals.

It is noted for being a gregarious species, shoaling in large numbers.

Humans might be able to endure it; Man is a gregarious species.

It is a gregarious species, probably never leaving a group of at least 20 birds.