Two Jack Russell Terriers, Sally 11 and Corky 6.

They just got back from the groomers about an hour ago and are now napping after their ordeal.

They are both females. Russells can go into a frenzy under the wrong circumstances and really tear each other up. 99% of the time docile.
It's the 1% that is a problem. More than a few bucks spent at the vet to repair the older dog that always loses the fight.

Steve