The 50-pound penguin at Australia's Sea Life Melbourne Aquarium is now roughly 9 months old and losing his downy fluff in favor of adult plumage. (Credit: Sea Life Melbourne Aquarium) Explore ...

Pesto is growing his adult plumage. These new black, white, and yellow feathers are pushing out his old downy juvenile ...

Pesto the Australian penguin is molting his famous fluffy feathers - The fluffy chick’s chunky form is slimming down as he ...

An emperor penguin is in recovery after swimming from Antarctica to Australia — a journey of over 2,000 miles. The bird was ...

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

Molting is a crucial phase in a king penguin’s life because it signifies the start of independence as they prepare to leave the colony.

Pesto the massive king penguin chick has begun his molting process, losing the fluffy brown feathers which defined his look ...

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

The viral king penguin chick at Sea Life Melbourne Aquarium is beginning to lose his youthful down, a process that will give ...

People around the world have been enchanted by the baby pygmy hippo whose name means something like "bouncy pork meatball." ...