• Mighty Mites

    Mighty Mites

    They hide in your bed and breed on your face. They’re smaller than the period at the end of this sentence.

  • How Slow-Moving Sloths Mate

    How Slow-Moving Sloths Mate

    When one of Earth's slowest mammals mates, "apparently it's very quick."

  • Our Favorite Penguin Pictures

    Our Favorite Penguin Pictures

    From impossibly fuzzy chicks to superfast divers, see some of our favorite National Geographic pictures of penguins in action.

Animals A-Z