Pesto, a chocolatey brown, fluffy king penguin chick at Melbourne’s Sea Life Aquarium, has become a viral sensation due to his enormous size and endearing appearance. Weighing 22.5kg (50lb) at nine months old, Pesto is the largest chick the aquarium has ever seen. His hefty size is attributed to both genetics and attentive care from his foster parents, Tango and Hudson. Despite his “chonky” appearance, Pesto is healthy and will naturally slim down as he loses his baby fluff. His popularity has attracted global attention, including from popstar Katy Perry.