Young Labs, which I know best, and other puppies tend to very bad about
biting. You see a litter of them, and all the ones that are awake are biting
another one or themselves. I am not even sure they realize that when they are
alone, if they quit biting, they would quit being bitten. At 3 to 4 months
they are getting their adult teeth, and it seems they spend every waking
moment biting or chewing. One thing you can do at that stage is to knot and wet a piece of cloth. Then freeze it. The cooling will soothe the gums. Only let the puppy have it when you are there to watch it. I maintain a Lab's favorite chew toy is another
Lab. They will be about as happy with any other dog young enough to enjoy puppy biting games. You may have to step in if the older dog is too rough at first. They quickly catch on to how much the younger one can take. Male/female usually is the best combination and fewest problems as long as they are fixed.
The pet stores are full of toys that many dogs will quickly chew up into
pieces they could choke on or cause intestinal blockages. If you are not
there to watch, stick to sturdy stuff such as Nylabones and Kongs. Keep a
close eye on chew toys and quickly discard anything that is coming apart in
pieces. Rawhide is especially bad because it swells after being swallowed.
These problems are the worst with, but not limited to, large, aggressive
chewers such as Labs.
See the sticky at
http://www.askmehelpdesk.com/dogs/in...tml#post251802