I suppose it should suprise me that the zoo doesn't know about problems with wood shavings and ferrets, but it doesn't. I've heard enough stories about the "care" some zoos give their animals that if this is the worst problem then they are doing well. I suppose you probably ought to write that letter although one (or several) from vets who have experience with ferrets would probably have more effect. Maybe Dr. Williams would send them one. I doubt that Black Footed Ferrets are that much different that wood shavings aren't just as bad for them as our pets. [Posted in FML issue 0732]