Penguin trainer Nick Vitale unlocks a door to a small cinderblock room. It's chilly, with buzzing fluorescent lights and a roaring ventilation fan. Also, it smells like fish. The perfect penguin ...

There, geriatric African penguins don’t have to worry about younger birds bombarding the buckets of fish delivered by trainers at the New England Aquarium in Boston.

Pesto the baby penguin is huge — both online and literally speaking. The nine-month-old king penguin, who lives at the Sea Life Melbourne Aquarium in Australia, weighs about 46 pounds.

For the sex reveal, the aquarium got a chocolate cake covered in white icing and a penguin topper. Staff posted a video on TikTok of the team cutting into the cake and blue frosting appearing ...

Furthermore, the king penguins used this method to catch fish one after another with a very high success rate. Although footage of the moment when several types of penguins catch their food has been ...

It credits his "hearty appetite" of 25 fish per day, as well as good genes and parenting: His biological dad, Blake, is the aquarium's biggest and oldest penguin (and also "a bit of a ladies man").

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.