Great advice! Many of my animals are getting pretty old: I currently have a 16 y.o. dog, for example, so I think old age may have been a factor at one point, because I think one of my original two cats didn't get murdered by any monsters or mishaps, but the oldest of my three cats is 12 y.o. Surely the game models pets peggin' it from old age...?
Dogs and cats are tracking blood, many of them tracking werepanda blood, which is bizarre, since the werepanda incident was about fifteen years ago when a goblin bard transformed in the middle of the tavern where he killed a puppy and a war dog and then got mangled by my dwarves. (Every dwarf is military on a 2/10 year-round training schedule. Three FBs have been killed single-handedly by three different dwarves. It's making justice tricky: My sheriff has 96/100 strength according to Dwarf Therapist and the knuckleheads still insist on stealing artifacts but not wearing the masterwork steel helms I had made for them. Crime may not pay, but the parting gifts are a coffin and a slab each made by a legendary dwarf.)
But here's what you're reading this for: One cat, the 12 y.o., has clown juice on each foot, and each foot is turning up yellow in the wounds listing -- I think veterinarian needs to be bumped up on the development to-do list, until I consider what else is probably on the list and I realize it can wait.
Anyway, I followed the cat for about ten minutes real time and can confirm miasma coming from the cat, though the cat's feet did get cleaned, presumably by the cat. The injuries are still yellow. It could also be that old animals get really gassy. Regardless, clown juice. I don't like it.
(I tried following the cat for longer, but it was making me buggy.)