One trick that zookeepers have used to get male pandas interested in mating with dowdier females (according to a December dispatch from Sichuan, China, in Australia's The Age) is to let an attractive female roam around a pen, leaving her scent, and then, in darkness, with the male in the pen and frisky at the scent, to introduce the less attractive female into the pen, back-end first, so that the pre- excited male will quickly begin copulating. Said zookeeper Zhang Hemin, "When the males find out











