#confused

My guinea pigs run from the front of the cage to the back multiple times. Then they start to show dominance. When they run around the cage, is that a show of having fun or are they just showing dominance?

Hi! I’m new to this forum and I decided to post because I wanted to ask what this was. I was rubbing Nugget’s chin and I felt this crust. I don’t know what it is or how long it’s been here but this is the first time i notice it. I tried to see if I could take it off, but it’s attached to his fur...