Stuart 
Puppy infanticide is a horrible thing to happen but definitely not uncommon. Especially as an animal lover, there’s hardly anything more shocking than to see the puppies lay dead under the mother. But why do dogs kill their puppies?
You can train your dog by teaching it to sit in a fixed spot when meeting a stranger. You can also play “ignore” with a friend and treat the dog afterward. Another way to train is to maintain distance from strangers, or you can play distraction so that your dog stays away from strangers.
Wild dogs do not trim their nails or have anyone do it for them. But their nails eventually wear down as these dogs tend to walk, run and climb on hard, concrete, or rough surfaces. However, it is also natural for some of them to end up with overgrown nails.
Dogs often become calm around you because of separation anxiety. If you leave them too often, they can be stressed and stay calm when you are with them. Some go quiet because they feel safer when you are around them.
Some people believe that dogs smell good when they sleep because of some internal reaction that happens as they sleep. It smells like warmth releasing from the dog. However, no scientific answers have been found on this matter so far. Dogs do smell when they sleep, but it may not always be pleasing.
