Hello.. I have an alaskan husky and wolf mixed puppy. I am worried that he might not be the size he is supposed to be.. he isn't exactly what I would call skinny but he is also not the same size of his other siblings.. I have had him checked out for worms and he seems in good health.. should I be worried? He is eating, drinking, and playing like a normal puppy. I don't know much of these type of breeds as most of my dogs are lab/chows.