It's not easy being shafted for another bird, even when you're a bird.
Infidelity, jealousy, separation...they aren't just human problems. Members of the animal kingdom also face such relationship afflictions. Consider, for example, Harry and Pepper. Since 2003, the two male Magellan penguins have been a happily paired gay couple well-known to visitors of the San Francisco Zoo. In addition to nesting together, Harry and Pepper became parents when they incubated an egg laid by another penguin in 2008. But things turned sour earlier this year when Linda, a recently widowed female penguin, befriended Harry.
