Mating Behavior

The venture-capital ovulation idea is explicitly speculative rather than established. Humans are presented as having both sexual variety drives and long-term pair-bonding drives. Long-term pair bonding is treated as natural because humans are a biparental species with long offspring dependency. Ethical self-control is distinguished from the natural experience of attraction or sexual imagination. Paternity uncertainty is used to explain male sensitivity to female infidelity. Female fertility status is presented as possibly affecting beautification and sexual signaling.