n a particular bird species who live socially, we sometimes see an individual in the social group helping to rear the offspring of its siblings, rather than finding a mate and reproducing itself.  Describe the expected relative importance of direct and indirect fitness benefits to the individual helper, explain your answer. Explain how this same helper could improve its fitness by helping raise the offspring of an unrelated couple.

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Animal Behavior

Animal behavior can be defined as all the things that animals do. In response to a stimulus, an animal performs a certain fixed action pattern, or FAP, of behavior. This response occurs to make the animal more adaptable to change. So, behavior is generally a stimulus-oriented response. A behavior is an expression of the capabilities of the nervous system. A stimulus is determined by the environment, while the nervous system determines a response.