Pesto, the viral King Penguin at Melbourne's Sea Life aquarium, is growing up. He is losing his fluffy appearance in a ...

Pesto the penguin, who lives at the Sea Life Aquarium in Melbourne, Australia, became a viral sensation for his ginormous ...

including one showing him towering over the adult penguins as a baby. Sea Life said Pesto is the largest penguin they have ever seen. He eats 25 fish a day.

King penguin chicks experience their first molt around 10 months old and the process can last up to six weeks, per the aquarium. Since molting requires baby chicks to use a lot of energy ...

It's a crucial phase in a king penguin's life ... to his big lifestyle, eating up to 25 fish a day, as well as his adorable appearance. Pesto will soon lose all his baby feathers to reveal ...