During the ice age, conditions became particularly harsh. This led to humans having to find new ways to adapt and survive. Early humans did just that. One of the ways in which they did so was by developing tools out of bones and rock which enabled them to defend themselves, hunt and interact with the world around them. Moreover, these humans were able to make warm clothes out of the animals they hunted. Finally, Stone Age humans were able to use fire in order to cook their food and stay warm.
