Final answer:
Smaller human groups in the Paleolithic Age were more adaptable and flexible, critical for survival due to resource limitations and the need for cooperation within an egalitarian society.
Step-by-step explanation:
Small groups of humans were better suited to survival in the Paleolithic Age mainly due to their adaptability and flexibility. Such groups could efficiently exploit the resources of their local environment and move more easily when those resources were exhausted or when environmental conditions changed. Moreover, within smaller groups, cooperation was essential, leading to more egalitarian social structures, which, combined with their intimate knowledge of their surroundings, enhanced their chances of survival. The challenges of procuring enough food could be more readily met by small, nimble groups than larger ones. Smaller groups were better equipped to adapt to the variety of challenges they faced, from securing shelter to developing the tools necessary for their day-to-day survival.