When you die your wolves just walks around on that exact same spot you died you need to get back to that place to see your wolves again and by the way I have some happy news they won't despawn :)
you go /back to go back to where you died
you go to a grassy area or forest and wait for them to spawn. it takes a while though. (i dont think wolves are worth it though, they usually die after 1-3 nights of fighting)
the posibility of this might be a common crash or your xbox can't handle minecraft.
the pack upon his back is a pack of wolves
In Minecraft, wolves have 3 modes: Neutral: The wolf has not befriended you or decided you are an enemy. If you give it a bone(or sometimes more than 1), a red collar will appear on the front of it. Attack it and it sees you as an enemy. Friendly: You can make it sit or come with you by right-clicking on it. To kill it, click on it many times until it falls over and dies. Enemy: It will come at you. If there are other wolves nearby, they may team up on you. Repeatedly hit it to make it fall over and die.
wolves die of many reasons, they can die because of humans by: being hit by cars, by hunters killing them, and even being shot by someone scared of them. also wolves can kill other wolves if other wolves territory.
No, no matter what way you die you will always drop your stuff.
Wolves can die by being hunt down by other animals or by unusual starvation.
Wolves and humans usually don't mix well, which wolves tend to learn or die. So I can't imagine any place where backyard wolves would be a regular thing. Coyotes possibly, but not wolves. But wolves have been known to travel far in search of a mate and territory, which means that occasionally, wolves have been known to appear just about anywhere.
yes
no you come back as a cat of a fly