There’s a lot to know about penguins. With their dapper black and white feathers and their adorable waddling, penguins have captured the imagination for years. But did you know that penguins can hold their breath for 20 minutes, or that they spend three quarters of their lives at sea? Even for penguin lovers, there’s so much to learn! Brush up on penguin habitats (some of which are rather unexpected), how penguins parent, penguin friendships, and famous penguins through the years.