MELBOURNE, Australia (AP) A huge king penguin chick named Pesto, who weighs as much as both his parents combined, has become a social media celebrity and a star attraction at an Australian aquarium.

Weighing 22 kilograms (49 pounds) at 9 months old, Pesto is the heaviest penguin chick the Sea Life Melbourne Aquarium has ever had, its education supervisor Jacinta Early said on Friday.

By contrast, his doting parents, Hudson and Tango weigh 11 kilograms (24 pounds) each.