when a ferret is losing weight have their stool checked for tapeworm first- they can have this if they have ingested any flea or mite eggs at anytime- they just need a couple dollar pill to deworm and then flea preventative too- we jad one that was diagnosed as cancer partly bc of wt loss & it was just a wrom instead - whew! :) beth www.crittercamp.biz [Posted in FML issue 5317]