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peter dohan's avatar

Simplistic title. Thoughtful insights. None of the sex variations cited involve nonmarsupial mammals. Yes mammalian development involves gene mixup of parents' genes = more genetic variability to enhance evolutionary adaptation. And sex is about making new copies of our dna that degenerate as we age, necessitating sex again to produce new dna. Human brain behavior beyond getting foood and survival is basically concerned with sexual mating.

Lixing Sun's avatar

Thanks for your thoughtful comment! I'm unable to bring up too many examples in the summary. The book contains lots of cases in all sorts of mammals.

peter dohan's avatar

Thank you. Your book has valuable insights into post-fertilization gene mixing, giving us more evolutionary success routes. Thank you for an important book. Zao an peter

Lixing Sun's avatar

I've been fascinated by all the new discoveries in cell, molecular, and developmental biology. In biomedicine alone, we've known so much about human development just in recent decades.

Lixing Sun's avatar

I'm Lixing, the author of On the Origin of Sex. I hope the book gives you a few surprises, a few laughs, and plenty of interesting things to talk about with friends and family.

If you have any questions, thoughts, or favorite stories related to or from the book, please don't hesitate to send them my way. I'd love to hear from you and continue the conversation.