6 weeks..why so young? I've had my work cut out for me w/my young pup. She didn't come from a breeder, just someone who didn't want to care for the puppies any longer. So I was put in a ruff situation where I had to take her home young. But I would of preferred her to stay for as long as she could of.. They need to learn what is socially exceptable from the mother and litter mates. My little girl is beyond feisty. All puppies are full of energy but Bella is on fire lol. Not aggressive though. She's playfully biting, biting & mouthing everything due to her baby teeth growing in. Your pup is just a couple weeks younger then mine so her baby teeth r coming in..& they will mouth any an everything. It's going to take persistent training on ur behalf. Bella is just now starting to understand that she cant bite my hands and feet. It's taken lots of patience. She still bites of course but its not as bad and she's thinking about weather to do it or not. As for not liking other animals, he might of had a bad experience. Just be patient. Train him & then slowly bring him around friendly dogs.
Good luck & hang in there. In a few more weeks you can enroll in obedience classes, they will help!
