Behavior that appears to have no payoff, that is, an...

Behavior that appears to have no payoff, that is, an individual appears to act to benefit others rather than itself is known as
(a) mutualism
(b) altruistic behavior
(c) reciprocal altruism
(d) inclusive fitness
(e) helping behavior

Key Concepts

Altruism

Altruism refers to a behavior in which an individual acts to benefit another at a cost to itself. This behavior seems counterintuitive from a natural selection perspective because it appears to reduce the altruist’s own chances for survival or reproduction. In evolutionary biology, explaining altruism has led to the development of theories such as kin selection and reciprocal altruism, which provide frameworks for understanding how such behaviors can evolve.

Kin Selection and Inclusive Fitness

Kin selection is the process through which behaviors that help a genetic relative may be favored by natural selection, even if they are costly to the individual performing them. Inclusive fitness expands on this idea by considering not only an individual's own reproduction (direct fitness) but also the impact on the reproductive success of relatives (indirect fitness). Together, these concepts explain how actions that appear altruistic on the surface can actually increase the overall propagation of shared genes.

Reciprocal Altruism

Reciprocal altruism is the evolutionary strategy where an organism acts in a way that temporarily reduces its fitness while increasing another's, with the expectation that the favor will be returned in the future. This mutual exchange of benefits can stabilize cooperative behavior among non-relatives, providing a long-term payoff despite an initial apparent cost.

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