Hunter-Gatherers were those who provided food which was meta of animals. They also gathered fruits and plants such as grapes and such Hunter-Gatherers followed herds of animals especially the megafauna to sneak up and catch their prey.
This segment is about the farmers and herders of animals and plants. The plants were usually used for food. And animals are for help to humans.
The agriculture revolution was really just based off of the best ways and supplies for crops and farming. It was found to be best to plant and farm around crescents. Crescents are land with little cracks in between with water or rivers.