We had a fascinating guest on last night from the Field Museum, Robert Martin. He has written a book called, How We Do It: The Evolution and Future of Human Reproduction. Among the questions we asked:
- Why is it necessary for there to be millions of human sperm for every egg?
- Penis bones are common in the animal kingdom, including primates. Why don’t human males have one?
- Are humans evolutionary programmed to be promiscuous or monogamous?
- Why do women get morning sickness?
- Why do men have nipples?
Check out my interview with him and hear his answers. His book is smart, accessible and fascinating!