Type: Dark Sludge Pokemon
HT / WT: 3'11" / 66.1 lbs.
A creature composed only of the mingled blood of MUKs and humans, YUCK eats as many people as it can to replenish its body, which it leaves behind it in a trail.
Yuck is essentialy just a bloody version of Muk, but it has spikes added to his back, and has a child's head in its mouth.
- Oddly, Yuck is made of blood, while Moulder is made of toxic sludge. it is also still called the "Dark Sludge Pokemon".