During the Paleolithic era, hunting, gathering, and basic technology were essential for human survival. Hunting provided tribes with meat and materials for tools and shelter. Gathering supplemented the diet with plants, fruits, and nuts. Tribes lived in basic huts and tents made from bones and hides, and traveled to follow animal herds. Gender roles also emerged, with men typically hunting and women gathering and caring for children. These basic survival behaviors and social structures laid the foundation for modern human nature.