Penguins spend a lot of their time combing and fluffing their feathers, or preening. That's especially true when the penguins are molting! (Find everything you'd want to know about molting here, here and here.) See preening in action here in this quick video of a rockhopper penguin during its molt. Notice the crisp new feathers coming in under the few fluffy, old feathers!
- Andrea
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