A Very Small Beginning
On January 31, 2024, a king penguin egg cracked open at Sea Life Melbourne Aquarium, and out came a chick so small the staff could hold him in one hand. He weighed 196 grams. That is less than a cup of sugar.
They named him Pesto. He had no idea what was coming.
The Eating Begins
King penguins grow fast, but Pesto grew faster. Every day the keepers brought fish. Every day Pesto ate it. Then he looked around for more. He was always hungry, and he was always growing, and the numbers on the scale kept climbing in a way that made the staff look at each other and raise their eyebrows.
By the time Pesto was a few months old, he was already drawing a crowd.
Bigger Than Both Parents
Adult king penguins are large birds. They stand about 90 centimeters tall and weigh around 13 to 14 kilograms on a typical day. Pesto's parents were perfectly respectable penguins by any measure.
Pesto grew to 90 centimeters tall and 23.5 kilograms. He weighed more than 50 pounds. He weighed more than his mother. He weighed more than his father. He was the largest chick the aquarium had ever recorded, and he was wearing a coat of fluffy brown down that made him look like a very large, very round stuffed animal.
The Gender Reveal
In September 2024, the aquarium held a gender reveal for Pesto. The staff gathered. A crowd watched online. The answer was announced: Pesto was a boy.
The internet had opinions. The internet always has opinions. But the video of Pesto waddling around, enormous and fluffy, won people over completely. Millions of views. International headlines. At one point, pop star Katy Perry came to visit. Pesto did not seem especially impressed, which only made people love him more.
Melbourne's Penguin
Street murals went up around Melbourne. Visitor numbers at the aquarium jumped 40 percent. Families who had never thought much about king penguins suddenly knew exactly what one looked like: brown, round, slightly grumpy-looking, and named Pesto.
He had become something rare. Not just an attraction, but a mascot for something. For the idea that nature is strange and joyful and worth paying attention to.
Growing Up
Eventually, Pesto's brown chick feathers would be replaced by the sleek black and white and gold of an adult king penguin. He would look less like a stuffed toy and more like the dignified seabird he was always meant to be.
But for a while, he was just Pesto: the biggest small thing in Melbourne, a chick who had no idea he was famous, eating his fish and waddling through his days with complete satisfaction.
Field Notes
- Pesto was born on January 31, 2024, at Sea Life Melbourne Aquarium, weighing just 196 grams.
- At his peak, Pesto weighed 23.5 kilograms (over 50 lbs) and stood 90 centimeters tall, outweighing both of his parents.
- He is the largest king penguin chick ever recorded at Sea Life Melbourne Aquarium.
- Pesto's gender reveal video in September 2024 went viral internationally, and pop star Katy Perry visited him at the aquarium.
- Visitor numbers at Sea Life Melbourne increased by 40 percent during Pesto's time as a chick, and street murals were painted in his honor around the city.
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The Penguin Foundation protects little penguins and their habitat on Phillip Island, Australia, through research, conservation, and community programs.
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