How did physical geography determine the lives of early humans?

Where people lived dirrectly affected how they lived,, climate,, food source, availability of building materials for shelter all contribute. For example, those living in hot equatorial climates, would require less clothing, while those in mountainous regions where it snowed would require fur. If they lived by the sea or lake they would fish, but the nomads of the desert would rely on herds of animals, such as goats, to sustain them. Climate would also influence skin pigmentation over generations; those in sunnier climates would develop darker skin to protect themselves from the sun.