Knuckles is an echidna Echidna, Cartoon, Bart(05) Save Image Image gallery: What Animal Was Knuckles? The Truth Sega Tried To Hide!
![Knuckles' Chaotix [USA] (Sega Genesis 32X) (Secret Metal Sonic](https://i.ytimg.com/vi/WR1djA1b1lA/maxresdefault.jpg "Knuckles' Chaotix [USA] (Sega Genesis 32X) (Secret Metal Sonic")
