The mother penguins come back and feed their young, while the male penguins go all the way back to sea (70 miles) to feed themselves.

The male penguins never did take a shine to the imported Swedish females.

The weight also varies by season, as both male and female penguins lose substantial mass while raising hatchlings and incubating eggs.

The book is about the true story of two male penguins that raised a chick together in the Central Park Zoo in New York City.

The surplus of male penguins allows the female penguins to select more experienced male partners as soon as the females are physically able to breed.

This grim conclusion comes after a study of two male Magellanic penguins whose movements were tracked during the past breeding season by a satellite radio network.

Leslie became an inadvertent hero of its patrons when she married two male penguins at the Pawnee zoo.

Roy joined a group of unattached male penguins.

To keep warm, all the male penguins huddle together.