AR ZONE!
Inside a rattlesnake’s rattle
What gives these reptiles their distinguishing sound?
Empty sound
How does this hollow structure make noise?
Rattlesnakes can sense heat coming from their prey before they attack
© Getty
Button
This is produced the first time the young snake sheds its skin. It replaces the small, round end of its tail that it was born with, called a pre-button.
Amplified sound
When the keratin segments strike each other, sound waves bounce off the walls of the rattle and echo in the hollow space.