The furry baby King Penguin is only 9 months old and ... exhibit has ever seen and has a big appetite, eating around 25 fish per day. The aquarium attributes Pesto's size to his biological dad ...

Pesto, who weighs 46 pounds at just nine months old, has been on display at an Australian aquarium since April. As he grew, so did his social media fanbase — especially after a recent gender reveal.