While petting one of my guinea pigs today, I noticed small black specks on her fur. My phone wouldn't focus on them, and I therefore have no pictures, so I will do my best to describe them. They are both on top of and under her fur. They are small black specks, small enough that I can't make out any form to them. I couldn't tell of they were moving or not. As far as I have noticed, there has been no excessive itching or scratching. I couldn't easily tell if my other pigs had the same thing. The only reason I spotted them on Twix (the guinea pig that I have been talking about) is because she is a sleek calico, so they stood out on her. If these were mites or lice would I be able to see them moving? Would Twix be itching herself excessively?