Pesto Is Growing Up! The Viral Baby Penguin Is Shedding the Fluffy Feathers That Made Him Famous

Pesto the penguin is going through some big changes! At about 10 months old, the King Penguin chick, who went viral this year for his large and fluffy appearance, started to shed his baby feathers and gain some adult ones in a process called fledging, according to Sea Life Melbourne Aquarium. Pesto resides at the Australian aquarium.