I googled this last night and that's what he's doing!
Gpig1 has (well, HAD) gorgeous long smooth hair which trailed across the ground in a Dougal-esque fashion, ''twas fab.
This past week it's been getting shorter and shorter, and he now as an all-over grade 3 haircut.....
Gpig2 is the culprit. I have never heard of this happening before, and I have owned 25 guinea-pigs!! Can I stop it and, if so, how? Gpig1 doesn't have any bald spots, cuts or sores, and the piggies still seem happy together, no evidence of fighting or squabbling. They are both boys, aged approx 1.5 years old btw.
Is Gpig1 at risk of aggression / total baldness?!