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 ...

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

Since molting requires baby chicks to use a lot of energy ... Growing these new feathers will allow Pesto to eventually swim. While king penguin chicks' brown feathers are insulating, they ...

Penguins are also sexually monomorphic ... Pesto has started losing some of his baby feathers, and swimming lessons – from ...

A piece from the American Institute of Physics points out that Gentoo penguins are the fastest swimming birds in the world, and that ability comes from their unique and sophisticated wings.