How Dangerous Are Piranhas Really? | Penn & Teller Tell A Lie

We have all heard tales about adventurers running into lakes filled with piranhas and being eaten alive, but is it true? On this episode, Penn and Teller dive deep into history to find out the truth about piranha attacks. Will Penn be able to survive the attack? Subscribe to us here: https://www.youtube.com/user/yourdisc... Like us at:   / yourdiscoveryscience