which animals form a eusocial society?\nants\ncheetahs\npolar bears\nmoose

Brief Explanations:

Eusocial animals have complex social structures with division of labor, overlapping generations, and cooperative care of young. Ants exhibit these characteristics with queens, workers, and soldiers. Cheetahs, polar bears, and moose do not have such eusocial systems.

Answer:

ants