Explanation: Animals form groups to increase their chance of survival. The animals work together to hunt, raise their young, protect each other, and more. Survival would be much more difficult if some animals lived on their own rather than in a group.

What animals are always in groups?

Why are some animals Social?

Many social behaviors of animals are adaptive, meaning that being social ultimately increases an animal's fitness — its lifetime reproductive success. ... Wildebeests do suffer social costs from aggregating in groups — grazing sites may not provide adequate food for every individual in the group, for example.