egg or a chick in the same manner as Roy and Silo has been repeated more than once. In 2009, German zookeepers gave an egg to a male same-sex pair of Humboldt penguins named Z and Vielpunkt, which hatched the egg and raised the chick. In 2011, Chinese zoo keepers gave a chick to a male same-sex pair of penguins to look after, once it became apparent that the chick's natural parents could not look after two chicks. In 2018, Sealife Sydney in Australia, saw two male Gentoo penguins successfully hatch an egg, after they were observed with a dummy egg. In 2020 they hatched a second egg, and their first chick also had her own chick. The Central Park Zoo has had other same-sex couples, with both an all-male couple (named Squawk and Milo) and an all-female couple (named Georgey and Mickey) conducting courtship behavior. In 2014, zookeepers at Wingham Wildlife Park, in Kent, UK, gave an egg that had been abandoned by its mother after the father refused to help incubate it to a Humboldt penguin male same-sex pair called Jumbs and Kermit. The park owner stated in a BBC interview, "These two have so far proven to be two of the best penguin parents we have had yet." See also List of individual birds Homosexual behavior in penguins List of animals displaying homosexual behavior References Individual penguins 1987 animal births Animal sexuality Individual animals in the United States