At the Bremerhaven Zoo in northern Germany, two gay penguins, Z and Vielpunkt, guard the artificial cave housing their nest. Inside, a 6 week old chick peeks out from behind its adoptive parents.
The chick's egg was placed in the male's nest by zoo keepers after the biological parents rejected it. The gay couple incubated the egg for 30 days and continues to care for the chick like a heterosexual pair.
Of the 20 Humboldt penguins the Bremerhaven zoo has tried to mate, 6 are homosexual.
A few years ago the zoo provoked protests from the gay community when several female penguins were brought in to tempt the gay penguins to go straight. The gay penguins however remained faithful to their mates.