Other animals, like the social mammals -- the wolves, the elephants, the dolphins, the chimpanzees -- they can cooperate much more flexibly, but they do so only in small numbers, because cooperation among chimpanzees is based on intimate knowledge, one of the other.
Andra djur, som de sociala däggdjuren -- vargar, elefanter,  delfiner, schimpanser -- kan samarbeta mycket mer flexibelt, men bara i små grupper, eftersom samarbete bland schimpanser är baserat på intim kännedom mellan individer.