Most of the penguins at the Oceanworld Aquarium Dingle in Ireland are in same-sex couples.
Animal manager Louise Overy told the Irish Mirror that, while other zoos are proud to have one same-sex penguin couple, they have four among their population of 14 penguins.
“We have two homosexual pairs and two lesbian ones,” she said.
“You cannot tell a male penguin from a female by their sexual organs so the only way we know is when we see them mating and not producing chicks.”
For more on this article and other stories visit: