"In nature’s sex wars, males campaign for more offspring—the proverbial seed-spreading—while females play hard-to-get because they bear most of the burden of reproduction and parenthood."

Projecting a little?

And be wary of the Yenching, last time I was there I got a raging case of food poisoning.

I am sorry to hear it; I have never had anything but a delicious, occasionally slightly-overstuffed-with-Shanghai-rice-cakes experience with them.