He had coccidia, a parasite likely picked up from the litter. It is often mis-diagnosed as parvo. Given his size and age at the time (1 lb 8 oz - 8 weeks) his immune system wasn't strong enough to fight it off. He also suffers from low blood sugar levels but that too should clear up as he matures.
Like I said earlier, he's a real fighter. Daughter took him in yesterday for sugar level tests and it took three of em to hold him still so they could draw the blood.
He loves to visit Jack and Bailey. Bailey loves him, and Jack is interested but doesn't really want to play.
Here's Bailey and Studley sharing a bone. Just before I snapped this pic, each had one end in their mouths.
