Would you rather hear these stories in a 10-minute clip? Listen to our brand new audio digest here.
Share the knowledge!
Key Facts In This Video
The pacu is a species of piranha with human-like teeth. 00:21
The pacu fish is known to bite human testicles by mistake. 01:06
The pacu fish is an invasive species. 01:27
Written by Curiosity Staff February 9, 2015
Wake up with the smartest email in your inbox.
Our Best Articles Daily