I don't think that all groups had a leader.
This is from wikipedia.
Hunter-gatherers tend to have an egalitarian social ethos, although settled hunter-gatherers (for example, those inhabiting the Northwest Coast of North America) are an exception to this rule. Nearly all African hunter-gatherers are egalitarian, with women roughly as influential and powerful as men.[9] Karl Marx defined this socio-economic system as primitive communism.[10]
The egalitarianism typical of human hunters and gatherers is never total, but is striking when viewed in an evolutionary context. One of humanity's two closest primate relatives, chimpanzees, are anything but egalitarian, forming themselves into hierarchies that are often dominated by an alpha male. So great is the contrast with human hunter-gatherers that it is widely argued by palaeoanthropologists that resistance to being dominated was a key factor driving the evolutionary emergence of human consciousness, language, kinship and social organization.[11][12][13]
Anthropologists maintain that hunter/gatherers don't have permanent leaders; instead, the person taking the initiative at any one time depends on the task being performed.[14][15][16] In addition to social and economic equality in hunter-gatherer societies, there is often, though not always, sexual parity as well.[14] Hunter-gatherers are often grouped together based on kinship and band (or tribe) membership.[17] Postmarital residence among hunter-gatherers tends to be matrilocal, at least initially.[18] Young mothers can enjoy childcare support from their own mothers, who continue living nearby in the same camp.[19] The systems of kinship and descent among human hunter-gatherers were relatively flexible, although there is evidence that early human kinship in general tended to be matrilineal.[20]
It is easy for Western-educated scholars to fall into the trap of viewing hunter-gatherer social and sexual arrangements in the light of Western values.[editorializing] One common arrangement is the sexual division of labour, with women doing most of the gathering, while men concentrate on big game hunting. It might be imagined that this arrangement oppresses women, keeping them in the domestic sphere. However, according to some observers, hunter-gatherer women would not understand this interpretation. Since childcare is collective, with every baby having multiple mothers and male carers, the domestic sphere is not atomised or privatised but an empowering place to be.[citation needed] In all hunter-gatherer societies, women appreciate the meat brought back to camp by men. An illustrative account is Megan Biesele's study of the southern African Ju/'hoan, 'Women Like Meat'.[21] Recent archaeological research suggests that the sexual division of labor was the fundamental organisational innovation that gave Homo sapiens the edge over the Neanderthals, allowing our ancestors to migrate from Africa and spread across the globe.[22]
To this day, most hunter-gatherers have a symbolically structured sexual division of labour.[23] However, it is true that in a small minority of cases, women hunt the same kind of quarry as men, sometimes doing so alongside men. The best-known example are the Aeta people of the Philippines. According to one study, "About 85% of Philippine Aeta women hunt, and they hunt the same quarry as men. Aeta women hunt in groups and with dogs, and have a 31% success rate as opposed to 17% for men. Their rates are even better when they combine forces with men: mixed hunting groups have a full 41% success rate among the Aeta."[15] Among the Ju'/hoansi people of Namibia, women help men track down quarry.[24] Women in the Australian Martu also primarily hunt small animals like lizards to feed their children and maintain relations with other women.[25]
A 19th century engraving of an Indigenous Australian encampment.
At the 1966 "Man the Hunter" conference, anthropologists Richard Borshay Lee and Irven DeVore suggested that egalitarianism was one of several central characteristics of nomadic hunting and gathering societies because mobility requires minimization of material possessions throughout a population. Therefore, no surplus of resources can be accumulated by any single member. Other characteristics Lee and DeVore proposed were flux in territorial boundaries as well as in demographic composition.
At the same conference, Marshall Sahlins presented a paper entitled, "Notes on the Original Affluent Society", in which he challenged the popular view of hunter-gatherers lives as "solitary, poor, nasty, brutish and short," as Thomas Hobbes had put it in 1651. According to Sahlins, ethnographic data indicated that hunter-gatherers worked far fewer hours and enjoyed more leisure than typical members of industrial society, and they still ate well. Their "affluence" came from the idea that they were satisfied with very little in the material sense.[26] Later, in 1996, Ross Sackett performed two distinct meta-analyses to empirically test Sahlin's view. The first of these studies looked at 102 time-allocation studies, and the second one analyzed 207 energy-expenditure studies. Sackett found that adults in foraging and horticultural societies work, on average, about 6.5 hours a day, where as people in agricultural and industrial societies work on average 8.8 hours a day.[27]
Recent research also indicates that the life-expectancy of hunter-gatherers is surprisingly high.[28]
Mutual exchange and sharing of resources (i.e., meat gained from hunting) are important in the economic systems of hunter-gatherer societies.[17] Therefore, these societies can be described as based on a "gift economy."
