It's worth noting that in a way, social behavior is a neotenous trait in wolves as well. Wolf packs are basically families. The "Alphas" are in fact the fathe

It's worth noting that in a way, social behavior is a neotenous trait in wolves as well. Wolf packs are basically families. The "Alphas" are in fact the father and mother; the rest of the adult wolves are their offspring who haven't yet left the pack to try to establish their own. If the parents are still hale and healthy when the young adult wolves are ready to reproduce, they'll leave the pack to seek mates and establish their own pack. So pack-style social behavior in a dog is essentially neotenous as well.