What is the main difference between primitive humans and animals?

Man, who initially developed as a biological being (like all animals), then changed the path of evolution to biosocial. The main differences between humans and animals were:
upright posture;
life in large groups, where the division of labor has gradually formed;
a more developed intellect, which allowed people to master tools more complex than a stick (the latter can be used, for example, by monkeys).
It was a developed brain and the ability to exist in a team that allowed people to move to a qualitatively new stage of development.