Fire, Coal and Oil
- Episode aired Feb 16, 2013
- TV-14
- 22m
Early man rubbed two sticks together and created fire. We learn to cook our food, saving vital energy. As a result, our brains expand--making us the most intelligent species on the planet.Early man rubbed two sticks together and created fire. We learn to cook our food, saving vital energy. As a result, our brains expand--making us the most intelligent species on the planet.Early man rubbed two sticks together and created fire. We learn to cook our food, saving vital energy. As a result, our brains expand--making us the most intelligent species on the planet.