The author is Ullica Segerstrale and the subtitle of this excellent and fascinating book is The Life and Work of W.D. Hamilton. Here is one bit:
She had decided to break up with him. The reason for this…was Bill’s strange idea of marriage. Bill had told her that they should have no more than two children, of which one child would be his and another her child with another man. His girlfriend thought about this and realized she could not agree. She also wondered what lay behind this suggestion. (She probably did not recognize Bill’s experimental scenario as coming straight out of some book like Out of the Night.)
This book has many excellent lines, including:
There is a famous New Zealand expression: “Anything can be fixed with a number 8 wire.”
Who carries around cyanide?
Robert Trivers makes numerous cameos as well.