Step-by-step explanation:
From the primitive life of humans are since humans have existed on the earth. The basic way of sustaining and continuing the life was by hunting and gathering food. Almost about 80% of the life of humans was spent in hunting and gathering food.
Due to this culture of hunting and gathering many mammals or wild animals for example in North America were extinct.
The introduction of agriculture and farming was a very slow transition in this process which started from ancient China, India and some parts of the world. Which then gradually went on to touch America and people there thereby helping them with agricultural development and also development of people.