This is the first time Piper and Wilson have ever done this, much less nipped at each other. I got up this morning and was looking in the enclosure, and they were laying next to each other, as they often are. The next thing I know, Wilson is biting Piper on his back, but they are just sitting there like that, not fighting or anything. It looked like Wilson didn't really have a hold, just a little bit of skin. It actually looked like Wilson's head was stuck to Piper's side/back. Well, I broke it up and they seperated and looked as if they were going to go to sleep. About an hour later, I walked in and this time Piper was biting Wilson's face, but not fighting, just biting lightly.

Anybody know what this could be? I'm a little worried about it?