Online dating patterns suggest that men are more likely to initiate online exchanges (over 75%) and extrapolate that men are less choosy, seek younger women, and cast a wide net.
Over generations, showier sons should also carry genes associated with choosier daughters, and choosier daughters should also carry genes associated with showier sons.
If males spend most of their limited resources producing such nutrient-rich fluid, it would also help explain why males are choosy about their partners.
