Yikes! Some of this is pretty scary!!
One poster said tug of war would be a good idea... tug of war is not a good game, as it encourages agression.
That's not true..
Tug of war is actually a great game for puppies socializing and learning to play without being aggressive. Well..... depends
who you ask, I guess. lol Some trainers say it's great, other say it isn't...
My dog was socialized for the most part by my friends rotti who was about 1 yr older than mine. They played tug of war from the very beginning, it's one of the first games the older dog taught mine. And they never got aggressive.. My dog LOVES playing tug of war with me too and has never got close to displaying aggressive behavior when playing with me or with other dogs.
Really depends on the dog and on the trainer, I guess.
a dog being overly aggressive trying to protect is kinda normal. Dogs generally will be possessive over food, but for raw food (or stuff that's more natural/primal), their wolf-like abilities are more apparent.
I have a dog under 15lbs, and when I try to take away his canned food/treats, he'll try to prevent me from doing so by just blocking me and growling a little bit. When I'm trying to take away his turkeyneck, he'll "attack" my hand without biting it, growl louder, and will hold onto it longer to prevent me from taking his stuff.
Um. Sorry, but no matter the dog's size - that's not 'normal' or 'acceptable', dear. What you're describing is actually pretty bad aggressive behavior. Your dog should not growl, bark, or 'attack' your hand or any other part of your body if you try to take away his/her toy, food or bone (raw or not). Your dog thinks he's the boss or leader and you're his bitch

, um, I mean - his subordinate.
Overall, since your dog is still a puppy and there was an idiot trying to take her bone, I see nothing wrong.
AAAH. That's scary advice. AAAH. Scary.
There's no way that's normal behavior. When a dog bites or attacks someone, animal control rarely even cares what this person did (unless they were clearly abusing or taunting the dog, of course). If an 8 year old decides to grab your dog's bone while you're not looking and your dog 'attacks', guards or bites the kid - no one will be saying:
"Aaah but it was completely normal for the dog to take a chunk out of the kid, as the dog natural/primal & wolf-like behavior are to be expected since he's on a raw food diet! Stitch the kid up, give him a lecture & reprimand his parents for making the dog bite him."
Um, no. Not so much, eh?!
Sorry, that's never normal or acceptable behavior from a dog. It may happen a lot, but that's a warning sign the dog needs some training in that department. Not that he's being more wolf-like. Unless you want him living in the woods with other wolves, he can't behave that way - regardless of its size!
Though, as other posters have mentioned, you should prove your dominance to your little doggie, so if you decide to take the bone away, your dog will just (unhappily) accept it.
If a dog considers you the leader (or dominant), there won't even be a question of whether your dog will 'happily' or 'unhappily' accept it... he'll just accept it and there will never even be an issue. There might be an issue when someone else (a stranger, someone who is not his leader) does it, but that is where training to eliminate aggressive guarding behavior comes in, and where it is really one of the most important things to teach your dog.
I'm sorry if it seems I'm targeting you, but your comments really scared the crap out of me. The behavior is just as bad regardless of the dog's size, but right about now I'm very thankful your dog is not 115lbs, or even half that size because that would be very, very scary IMO.
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The links below are of dog body language lecture (divided in 7 parts):
Learn the principles to efficiently build any behavior you can think of to any degree of difficulty you can imagine.
Jean Donaldson is the award-winning author of Oh Behave! Dogs from Pavlov to Premack to Pinker; The Culture Clash - A revolutionary new way of understanding the relationship between humans and domestic dogs; MINE! A Guide to Resource Guarding in Dogs;
Anyway, if anyone is curious... it's super interesting (IMO - lol)
Part 1:
Dog Body Language
Part 2:
Contrast from Happy to Stressed
Part 3:
Fear responses
Part 4:
Threat responses
Part 5:
Contact Intention & Threat
Part 6:
Fear vs Aggression as Threat
Part 7:
Bite inhibition and ritualization of aggression
These videos are Soooo interesting for anyone wanting to know more about dog behavior/body language. Most of us are brought up interpreting many of the messages dogs are giving us ALL wrong and it explains how some very common misinterpretations can lead to kids or adults getting bitten by a dog that was clearly making its fear, aggression, insecurity, etc known. Super interesting IMO.
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I think I spend too much time reading up on this stuff?!
Probably...

But all dogs have their own issues

lol My dog has some weird issues sometimes - though nothing harmful or serious, thank god. lol I've tried so hard to figure it out and fix it... I still haven't quite done that but I've learned lots of other cool stuff in the process. lol