1. What is bio-acoustics?

2. What three things describe sound?

3. What does frequency mean?

4. What does amplitude mean?

5. What frequency range can humans hear in?

6. What amplitude is too loud?

7. What are infrasounds?

8. What types of animals produce infrasounds?

9. What is ultrasound?

10. What types of animals produce ultrasounds?

11. What types of recorders are used to study bioacoustics?

12. What is a Binturong?

13. How many Sumatran rhinos are left in the world?

14. What animal does the Sumatran rhino sound like?

15. What do some scientists think the cat's purr is used for?