10 News First on Instagram: "It’s a boy! Pesto the penguin chick received global attention last month for his plump figure after weighing in at 21kg, nearly twice the weight of his parents. However, it wasn’t until now, nine months after his birth, that staff at SEA LIFE Melbourne Aquarium have known his gender. And to announce the big news, they hosted an icy gender reveal party with his fellow King penguins. #penguin #melbourne #penguinchick #pesto #sealifeaquarium"