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Inclusive fitness is a conceptual framework in evolutionary biology first defined by W. D. Hamilton in 1964. [1] It is primarily used to aid the understanding of how social traits are expected to evolve in structured populations. [2]
Inclusive fitness in humans is the application of inclusive fitness theory to human social behaviour, relationships and cooperation. Inclusive fitness theory (and the related kin selection theory) are general theories in evolutionary biology that propose a method to understand the evolution of social behaviours in organisms.
The inclusive fitness of an individual w i is the sum of its specific fitness of itself a i plus the specific fitness of each and every relative weighted by the degree of relatedness which equates to the summation of all r j *b j..... where r j is relatedness of a specific relative and b j is that specific relative's fitness – producing:
"Fitness gives each of them, and all of us, a way to overcome whatever challenges we face. It's the great equalizer. Two hundred pounds is 200 pounds whether you live in a mansion or are ...
This insight led to inclusive fitness and kin selection becoming important theories during the 20th century to help explain eusociality. Inclusive fitness is described as a combination of one's own reproductive success and the reproductive success of others that share similar genes. [1] Animals may increase their inclusive fitness through kin ...
Fitness+ launched in December 2020 with a library of close to 200 five- to 45-minute workouts. Today, there are more than 5,000 pieces of content across 12 modalities including strength training ...
General evolutionary theory, in its modern form, is essentially inclusive fitness theory. Inclusive fitness theory resolved the issue of how "altruism" evolved. The dominant, pre-Hamiltonian view was that altruism evolved via group selection: the notion that altruism evolved for the benefit of the group. The problem with this was that if one ...
This is a special case of a more general model, "inclusive fitness". [17] This analysis has been challenged, [ 18 ] Wilson writing that "the foundations of the general theory of inclusive fitness based on the theory of kin selection have crumbled" [ 19 ] and that he now relies instead on the theory of eusociality and "gene-culture co-evolution ...