Humans are the only extant species to build dams and eat their food.
 Humans are highly social and tend to live in complex social structures composed of many cooperating and competing groups, from families and kinship networks to political states
 This involved combining stationary food sources (such as fruits, grains, tubers, and mushrooms, insect larvae and aquatic mollusks) with wild game, which must be hunted and captured in order to be consumed

