Extras

    Video thumbnail: Science Trek Sound: Pistol Shrimp are really loud!

    Science Trek

    Sound: Pistol Shrimp are really loud!

    Why are pistol shrimp noisy?

    Sound: Pistol Shrimp are really loud!

    Video thumbnail: Science Trek Sound: I Can Hear Louder Than You Can.

    Science Trek

    Sound: I Can Hear Louder Than You Can.

    Many animals hear better than people do.

    Sound: I Can Hear Louder Than You Can.