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inclusive fitness

Inclusive fitness is a concept in evolutionary biology that expands the idea of fitness beyond individual survival and reproduction. It considers the contribution an individual makes to the genetic success of its relatives by helping them reproduce, as they share some of the same genes. For example, if an animal sacrifices its own chances of survival to help its siblings or offspring, it can still pass on its genetic material through their success. This principle helps explain altruistic behavior in social animals and illustrates how cooperation can enhance the survival of shared genetic traits within a community.

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  • Image for inclusive fitness

    Inclusive fitness is a concept in evolutionary biology that explains how animals can improve their chances of passing on genes by helping relatives survive and reproduce. Rather than only focusing on their own offspring, an individual can also support family members, increasing the likelihood that shared genes are carried on. This means that cooperative behaviors, like caring for siblings or aiding relatives, can enhance overall genetic success, even if it requires personal sacrifice. Essentially, it highlights the importance of family ties in the evolution of social behaviors among species.

  • Image for inclusive fitness

    Inclusive fitness is a concept in evolutionary biology that explains how an organism's biological success is not just about its own survival and reproduction, but also about helping relatives survive and reproduce. This idea suggests that behaviors aiding family members can enhance the overall genetic representation of shared genes in future generations. For example, a bird might risk its safety to warn relatives of a predator, increasing their chances of survival. Thus, by supporting kin, an individual indirectly promotes its own genetic lineage, illustrating that cooperation and altruism can evolve through shared genetics.