The puppies might just be fed more try feeding your puppy 3 times a day ( if you already aren't ) and feeding him just a tiny bit more than you already are. Dog food charts nearly always have a large range of the amount of food you can give them. Try giving him the largest amount of food you can ( don't overfeed him!
) I wouldn't worry that much about it. If you are really stressed take him to the vet and ask how much he should weigh. He might just have a faster metabolism then the other dogs, or perhaps they are overweight?
Did you take him a bit earlier than you should have? If he is under weight and you cant think of anything to do try giving him back to your neighbours for a bit to let him plump up.
Theres almost always a runt of the litter, theres nothing wrong with the dog it might need a little bit more attention but it should be ok.
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.