NOVA — Episode 101: NOVA Wonders What Are Animals Saying?

You are watching the episode NOVA Wonders What Are Animals Saying? From singing whales and squeaking bats to thumping spiders and clicking dolphins, the world is filled with the exotic sounds of our fellow creatures. What are they saying? Can we decode their own communications? NOVA Wonders follows researchers around the globe who are deciphering an amazing array of clues that reveal how animals share information critical to their survival.