General Approach Natural selection is differential reproduction by individuals of different genotypes. Natural selection is differential reproduction by individuals of different genotypes. Natural selection is differential reproduction by individuals of different genotypes. Natural selection is differential reproduction by individuals of different genotypes. Natural selection is differential reproduction by individuals of different genotypes.
Many behavioral traits have a complex genetic basis.
However, we do not need to identify the genes involved if it can be demonstrated that the trait is heritable. Where heritability has been investigated for behavioral traits, it has usually been found. William Cade, Science 1981. The study of living things is not only something to pursue because it is important and grossly underdeveloped. It is also a great deal of fun.