Sierra has started getting snippy with Buddy when it comes to bones and toys. We've had Buddy for about 13 months, and she started this about 3 months ago. When she has something and if Buddy just walks past her to close, she curls her lip and give him a low growl. Or if she sees him walking towards something, she'll run over from the other side of the room, or jump down off the couch and growl at him and steal it before he gets to it. Now what's funny is that Buddy could care less!! When she does it, he just walks away and gets something else to play with!!
This morning was the first time she actually lunged at him and gave quite a loud bark. I do see that it's getting worse, and that worries me.

I give them both the same amount of attention, the same treats, I feed them at the same time etc. Actually.... Sierra gets more because she loves Rick and she gets his attention also!! And Buddy...(well... I think you all know the story about Buddy and Rick )
So, I'll just keep trying to make an effort to make sure they both keep getting the same of everything... but what do you guys think??