My Sister Came Home With Another Puppy...

Usually, puppies will just be play fighting, it may sound bad, but you can tell. My puppy bailey is a cockerspaniel and sounds mean and sometime like he's dieing when he plays but its just play. You'll be able to hear the difference in the growls and barks, and whines. It's pretty significant.Also, if you start to get worried look at them if their bodies are straight and stiff then you should probably break them up but if their tails are wagging and they look excited just let them play, that's what their best at. puppies play really rough, when they yelp it's to show the other hey don't do that again it hurts, that's how they learn to be gentle and how hard they can wrestle, it's very important in their developement as a puppy to do this or it can make it to where they are too rough when they are larger and thats never good. If you feel and it looks like it's going to far make a loud noise kind of like a yelping or bark, at them separate them for a couple seconds or a minute and then let them play again if they do it again you do it again, repetition will be your best friend with a puppy.

You will know if they are serious, in most cases if they are just playing thier tails will be wagging. If it gets serious, which I dont think they will, they will grawl or something to let each other know that they are serious. I personally think you should let they play as they want to and if it gets to rough then stop them. Puppies play like that though.

It takes a little experience to tell the difference between playing and fighting. If you listen when they are playing and watch the body language, you might see the difference if things start ot get ugly. Teeth showing, snapping, barking are normal in play. When one gets angry you will notice a more aggressive type of growling and a different stance in the dog.When it gets to rough, separate them and use a sharp command. I say "Enough" very sharp and kind of growly. That says I am the pack leader and I order you to stop. They get it. Be very careful when separating them. They can get into a frenzy and bite anything they can. If you need something, tennis racks are good. Just get it between them and push one away. It becomes an extension of your arm.As always training is the key between having a good dog and not so good dog.

Puppy play is common, and puppies are a lot of work. How old are they exactly... there is a difference between 3 months and 10 months. What breed are dominant breed are they? You can correct puppy behavior the same way you do adult dog behavior...

Where did she get this puppy? Is it a guy selling it out of a trailer or backyard? If so, there may be problems with severely inbred litters. If the puppy is from a reputable breeder, the breeder will take it back without any questions.

Again, puppy play is common and includes growling and play biting that can last for as long as they play. They're also developing their status in the pack through rough play. Get them lots of toys and bully sticks that they can chew so they won't destroy your house. Likewise, you should crate train them, but don't make the crate a punishment. He should be a sanctuary and safety area. Leave yummy treats in the crate when they go in and reinforce with "good dog."