Piranhas and their terrifying teeth are coming for you! Discover what makes these frightening fish and their tricuspid teeth so scary. Piranhas are the sea creatures you don't want to mess with.

Produced by the makers of What If. Check out our other channels:

• What If
• How to Survive
• Aperture
• Crazy Creatures
• Your Body On
• Origins of Food
• WTF Did I Just Watch

Produced with love in Toronto by Underknown: www.underknown.com