Sounds pretty normal to me. Chester plays like that with other large dogs (he controls himself well with smaller dogs) and I usually break it up in the house simply to save my house or to keep them from hurting themselves against the floor, table etc.
Lots of tackling, bodies slamming into the ground, play biting (open mouths, nibbling), play barking or talking, grabbing each other's legs etc.
I watch for and stop it if one dog starts to overly dominate the play (continually pinning down the other for example), they quit taking turns in who is being the play aggressor, if one yelps and the other doesn't immediately back off, if one gets a stiff body or whale eyes or if either seems stressed OR getting too into it and losing bite inhibition from excitement.
Usually, there are lots of play bows, taking turns rolling on the floor, taking turns backing a step away and then pouncing and such.
I don't really look at tail wagging so much unless I know that it is that dog's personality to stop wagging his tail when things aren't cool for him. Chester has no tail anyway. I have met dogs that were fear biters and being defensively aggressive while still wagging their tails. Same with barking vs no barking-- lots of times they get barky and talky in that happy way while a very silent dog can be stressed and ready to snap at the other.
Note that I am talking only about "average" dogs and not actually dog-aggressive dogs. Just big lugs that can occasionally play a little too rough but will stop with a tug on the leash or stepping close and clapping my hands (or making a quick "EEK" or other odd noise)
Lots of tackling, bodies slamming into the ground, play biting (open mouths, nibbling), play barking or talking, grabbing each other's legs etc.
I watch for and stop it if one dog starts to overly dominate the play (continually pinning down the other for example), they quit taking turns in who is being the play aggressor, if one yelps and the other doesn't immediately back off, if one gets a stiff body or whale eyes or if either seems stressed OR getting too into it and losing bite inhibition from excitement.
Usually, there are lots of play bows, taking turns rolling on the floor, taking turns backing a step away and then pouncing and such.
I don't really look at tail wagging so much unless I know that it is that dog's personality to stop wagging his tail when things aren't cool for him. Chester has no tail anyway. I have met dogs that were fear biters and being defensively aggressive while still wagging their tails. Same with barking vs no barking-- lots of times they get barky and talky in that happy way while a very silent dog can be stressed and ready to snap at the other.
Note that I am talking only about "average" dogs and not actually dog-aggressive dogs. Just big lugs that can occasionally play a little too rough but will stop with a tug on the leash or stepping close and clapping my hands (or making a quick "EEK" or other odd noise)