Chicken is an important part of the Mario world. Chicken is a kind of food that you can eat. It has appeared in many kinds of media.
It appeared in the game Mario Chicken, where Mario almost got turned into a chicken.
Chicken appeared in the movie Eat Chicken: THE MOVIE!!!, where chicken was really evil and killed everybody. It also appeared in Dude, Where's My Chicken? (which was a blatant ripoff of the first chicken movie). Chicken is becoming a major movie star and will be famous very soon.
Chicken was interviewed in the second issue of Peeps magazine. In the interview, chicken revealed that it never takes baths and that it is a nudist.