منابع مشابه
Ecology: Tribal Warfare Maintains Microbial Diversity
When two tribes of Myxococcus bacteria attack each other, the most numerous usually wins. Established colonies can therefore resist invaders by outnumbering them. This shows how positive frequency dependence can maintain diversity across spatially structured environments.
متن کاملLife histories, blood revenge, and warfare in a tribal population.
Blood revenge is one of the most commonly cited causes of violence and warfare in tribal societies, yet it is largely ignored in recent anthropological theories of primitive warfare. A theory of tribal violence is presented showing how homicide, revenge, kinship obligations, and warfare are linked and why reproductive variables must be included in explanations of tribal violence and warfare. St...
متن کاملWarfare and reproductive success in a tribal population.
Intergroup conflict is a persistent feature of many human societies yet little is known about why individuals participate when doing so imposes a mortality risk. To evaluate whether participation in warfare is associated with reproductive benefits, we present data on participation in small-scale livestock raids among the Nyangatom, a group of nomadic pastoralists in East Africa. Nyangatom marri...
متن کاملKeeping Biological Anthropology in Anthropology, and Anthropology in Biology
Considerable tension among the subfields has existed within the discipline of anthropology. As a result, some anthropology departments have splintered, and the hallmark "holistic approach" of anthropology has been considered more myth than reality. However, as promoted by the American Anthropological Association and the American Anthropologist for over one hundred years, enhancing the holistic ...
متن کاملCyber anthropology or anthropology in cyberspace.
As a variety of anthropology, cyber anthropology is considered to be the fastest growing sub branch in the science. It is based on synergic effects of multimedia systems and hypermedia, using their comparative advantages. One of the least researched fields of cyber anthropology is the relationship of individuals and social groups with a multimedia document in terms of their perception of such s...
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ژورنال
عنوان ژورنال: Nature
سال: 2013
ISSN: 0028-0836,1476-4687
DOI: 10.1038/494310a