A lesson from the penguins
New York Times had an amusing story the other day about a cute pair of penguins in the Central Park Zoo. These penguins, Roy and Silo, have been together for six years. They are affectionate, caring, utterly devoted to each other -- and the happy parents of a healthy chick named Tango. The only anomalous part of this story is the fact that Roy and Silo are both males.

