• Publications
  • Influence
The evolution of cooperation.
TLDR
A model is developed based on the concept of an evolutionarily stable strategy in the context of the Prisoner's Dilemma game to show how cooperation based on reciprocity can get started in an asocial world, can thrive while interacting with a wide range of other strategies, and can resist invasion once fully established. Expand
The genetical evolution of social behaviour. I.
  • W. Hamilton
  • Biology, Medicine
  • Journal of theoretical biology
  • 1 July 1964
TLDR
A genetical mathematical model is described which allows for interactions between relatives on one another's fitness and a quantity is found which incorporates the maximizing property of Darwinian fitness, named “inclusive fitness”. Expand
The genetical evolution of social behaviour. II.
  • W. Hamilton
  • Biology, Medicine
  • Journal of theoretical biology
  • 1 July 1964
TLDR
Grounds for thinking that the model described in the previous paper can be used to support general biological principles of social evolution are briefly discussed and a hypothesis is outlined concerning social evolution in the Hymenoptera. Expand
The Evolution of Cooperation
Cooperation in organisms, whether bacteria or primates, has been a difficulty for evolutionary theory since Darwin. On the assumption that interactions between pairs of individuals occur on aExpand
Geometry for the selfish herd.
  • W. Hamilton
  • Mathematics, Medicine
  • Journal of theoretical biology
  • 1 May 1971
TLDR
An antithesis to the view that gregarious behaviour is evolved through benefits to the population or species is presented, and simply defined models are used to show that even in non-gregarious species selection is likely to favour individuals who stay close to others. Expand
Heritable true fitness and bright birds: a role for parasites?
Combination of seven surveys of blood parasites in North American passerines reveals weak, highly significant association over species between incidence of chronic blood infections (five genera ofExpand
The moulding of senescence by natural selection.
  • W. Hamilton
  • Biology, Medicine
  • Journal of theoretical biology
  • 1 September 1966
TLDR
A basis for the theory that senescence is an inevitable outcome of evolution is established and the model shows that higher fertility will be a primary factor leading to the evolution of higher rates ofsenescence unless the resulting extra mortality is confined to the immature period. Expand
Dispersal in stable habitats
TLDR
Simple mathematical models show that adaptations for achieving dispersal retain great importance even in uniform and predictable environments and provide a case where the evolutionarily stable dispersal strategy for individuals is suboptimal for the population as a whole. Expand
Altruism and Related Phenomena, Mainly in Social Insects
TLDR
With better knowledge of heredity and with more facts regarding the social insects to draw upon, Weismann recognized the possible conflict between intergroup and intragroup selection in the evolution of worker attributes. Expand
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