Remember that these are animals that didn't always have us to feed them, and that dog food it's self is only 50 years old!
Cooked bones can be dangerous, but in raw form, chicken bones or other soft bones work as fiber for your dog. Look for a book called "give your dog a bone" by Dr. Billinghurst for more info. My wife and I get a kick out of threads like this because we are always getting email from people from European countries asking what the big deal is about raw food. It's all they have to feed their pets with, because they don't have some miser trying to pawn off waste products as pet food.
You can also check out our web site:
http://www.rawdogranch.com