Early humans lived in jungle and were afraid of bigger and stronger wild animals. Earlier they had no house to live in and they spend their time on the trees or hide themselves behind the bushes. But it could provide them security from wild animals, rain, winter and sun heat. So, they started living in caves.
Early Humans image 3
As food and clothes is the basic necessity of humans, they started wrapping tree leaves and animal skin over their body to protect themselves from cold and heat. But they needed food also to live. They do not know how to grow crops in fields and finding food was not easy. In search of food, they had to go from one place to another. Earlier, they used to eat fruits from tree or roots of plants. Then they started hunting animals for food.