How did the ancient people survive the Ice Age?

A person survived due to many factors, but the main thing is the ability to hunt. Man learned to hunt, so the meat gave a man the necessary energy and clothing. People dressed in the skins of killed animals, warming from the extreme cold. It is also important that the person straightened up and learned to work with his hands, which helped him to create buildings and light a fire that gives the desired warmth. Communication helped a person pass on knowledge to future generations that would help him survive in a cruel environment.