… Using this framework, we clarify the relationships between available … models proposed for
the evolution of cooperation and altruism and investigate whether they can be classified in the …

… for altruism to evolve provides a very simple and general … to be the central question about
cooperation in nature: what are … of altruistic genes and the altruistic behaviour of others? …

… not precisely predict when cooperation or altruism will be favoured, … cooperation and
altruism is fundamental, although I would probably use the word mutualism instead of cooperation…

… altruism and cooperation) into four broad categories. We think this is a laudable and useful
undertaking and that such a common framework … novel scenarios for the evolution of helping. …

… evolutionary biology offers a set of disparate explanations, and a general framework for this
breadth of models … A shared genes model for the evolution of cooperation (altruism) was first …

… common requirement for the evolution of cooperation not captured explicitly by the
Lehmann–Keller model: that the evolution of cooperation … Reciprocal altruism seems less …

… Abstract- Lifeon this planet is full of astonishing examples of cooperation. Individual … common
goal: continuance of the species. The majority of living things also display amazing altruism …

… We refer to direct benefit models as models of cooperative behaviour and to indirect
benefit models as models of altruistic behaviour. Models of cooperative behaviour can be …

… , I will begin with a simple but very general framework for models of the evolution of altruism
and cooperation. This general framework allows us to see how and to what extent both an …

… Using a simple trait-group framework, we delineate the assumptions underlying different …
impossibility in the trait-group model we describe. We call this ‘marginal altruism’. The …