ABSTRACT
Darwin’s theory of evolution came from his great insight into how plants and animals change as they adapt to changing environments and new threats to their survival. His analysis became the new foundation of biological science in the nineteenth century. However, Darwin never resolved the vexing question of how superior traits of an individual pass to his or her offspring undiluted. At the time, it was believed that traits of the offspring were a blend of the traits of mother and father. If that supposition was true, a blended trait diminished natural selection. However, if traits could pass to offspring unaltered, natural selection was a powerful force.
