Alpacas will chew their food in a figure eight motion, swallow the food, and then pass it into one of the stomach's chambers. The first and second chambers (called C1 and C2) are anaerobic fermentation chambers where the fermentation process begins. The alpaca will further absorb nutrients and water in the first part of the third chamber. The end of the third chamber (called C3) is where the stomach secretes acids to digest food and is the likely place where an alpaca will have ulcers if stressed.
