Then it looks at human biological systems of sex and reproduction, the brain and behavior, and food and energy - systems they say that are not as familiar to most of us as our automobiles or televisions. Finally, the book takes a longer view and examines human life, and life in general, in the larger context of ecology, evolution and sociobiology. What we wrote about is not rocket science. There is nothing in the book that a typical person can't understand. We just want people to know more about biology and that there is nothing to be afraid of.
Biology is quite astounding.