Yes, they do. I talked to Sarah on Wednesday night. What they were hoping to avoid, did happen. All the 6 females (if I recall the number correctly) came into heet. This means for them an additional medical expense to give the jills a HGC hormone shot, at least once, if not twice. Last year, I had to find the hormone for a jill that was turned into me. The hormone, alone, costs $25. Every vet has their own "dispensing fee" cost which they add on for giving the shot. Normally, this is an additional $60 for FURRY outside of what they will have to spend to have the ferrets spayed. Sarah said, if you call the vet to "donate" help pay for it, ask for a vet tech named Margie. [Posted in FML issue 3146]