Why do my cats behave this way?

Very good question, Ignore the stupid answers, someone heard that you are not suppose to feed dog chicken bones and translated that to cats. I feed my cats chicken bones, they only eat the meat off the leg & thigh bones (which is the main bones that you should worry about splintering), some of the other softer bones such as the chicken back and neck bones they will chew up in fine pieces before swallowing. (Dogs will gulp the bones down in large chunks, I never feed by dog chicken bones). To solve your problem of the the cats fighting over food, try feeding them in separate locations, out of sight of each other.