New York Post.Electra and Viola’s new penguin chick – Photo: Oceanogràfic Valencia, via Facebook.In an August 17 post on its Facebook page, Oceanogràfic València wrote: “Electra and Viola, two female penguins from the Oceanogràfic València, have incubated the egg of another couple and now have their first offspring. Although the formation of same-sex pairs is common in more than 450 species both in zoos and in nature, this is the first time this has happened in our aquarium.