Two male Humboldt penguins successfully incubated and hatched an egg at Rosamond Gifford Zoo in New York. Screen grab/Rosamond Gifford Zoo Parenting isn’t always a waddle in the park for penguins.

A pair of gay penguins in Germany who tried earnestly to hatch a stone now have the chance to become real parents. Skipper, right, and his male partner Ping, left, have begun taking care of a real egg ...

In Birmingham, England, twin baby penguins hatched in front of the cameras at the National Sea Life Center to a proud pair of penguin parents. The chicks were born on June 2nd and named Ant and Dec.

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. An emperor penguin ...