A fairly advanced book, heavy on chemistry, and heavy on evolution. No longer could humans regard other forms of life as merely neighbors on Earth. They are, in fact, our kin. Today, the evidence for evolution is overwhelming. We shall see in this book that we can actually observe evolution happening around us.
Evolution is no longer merely a theory.
I,F Family tree showing a Gibbon, Orangutan, Chimpanzee, Gorilla and Human. This diagram is degrading to women, especially African and African-American women. A very evolutionary book. The overarching theme is evolution, which accounts for the unity and diversity of life and integrates the book's other themes. This overproduction makes a struggle for existence among the variant members of a population inevitable.