Some types of fireflies send light signals in coordination as a community?

Question

Write a list of instances of animal behaviour that show some congruity when acting in a group as opposed to the individualistic behaviour of acting alone.

Answer 1

Schools of fish, tribes of forraging gorillas, tribes of hunting canines (lions, tigers).

Answer 2

Roosting of Birds, Migration of Geese, Hunting of Wolves in packs.