The Unselfish Gene of the novel is a nod to Richard Dawkins' 1976 book, "The Selfish Gene". Among the concepts developed in Dawkins' book is a theory of how natural selection may favor self-sacrifice and other forms of altruism. The themes of altruism and small gene sets play an important role in plot and character development in The Unselfish Gene. The Unselfish Gene is what might be termed "semi-hard" science fiction. The technology described in the book is well within the limits of early 21st century technology. Some of it, such as "The Anita", an atomic-bomb powered heavy lifter space ship, was actually
The Evolution of Beauty that was adapted from "The Evolution of Beauty", stating that it is "both erroneous and confusing, for it misrepresents sexual selection, natural selection, and modern evolutionary theory." He later described the book as a "mixed bag" but stated that the bad parts outweighed the good, and stated that Prum's arguments were "tendentious". Evolutionary biologists Gerald Borgia and Gregory Ball state that Prum misrepresents opposition of scientists to the model of runaway selection and that he fails to make a case for its ubiquity. Further, they claim Prum inappropriately injects politics into biology, conflating eugenics and genocide with female mate choice