Because of a feather molting issue, he's got to stay out of the water but thankfully for Pierre, there's no limit on his screen time and he loves to binge watch anything related to penguins.
[Jane] Molting means shedding the skin. It's how some animals grow bigger. They shed their outer skin and they grow into a new skin or a new shell depending on what kind of animal it is when that's a little bit roomier.