Hi veryone again.. I have a JR & A GSD, when I put food (2 plates) on the ground for them to eat sometimes my JR goes and sniffs around in my GSD's plate and my GSD growls at him.. Is this agression or what?
Well, if someone came and sniffed around my plate while I was eating, I'd growl at them too.
Your GSD should be able to eat in peace with no concerns or anxiety about the JRT taking his food. This is a management issue - as MRL mentioned, put the plates further apart, supervise and prevent the JRT from bothering your GSD.