Hello Annette! As per your fml post; you said that the `main difference` between USA ferrets, and ferrets from Holland, where YOU live, was that ferrets there are NOT `neutered/spayed` "early"! Could You tell Me How long do MOST ferrets live there? Just approx. lifespan. If noticeably LONGER: plus `1` for the "anti-early spay/neuter side,"(my belief), : `0` for the "pro-early spay/neuter side!" AND a` PLUS` for SUKIE, on the "18 hrs. of Darkness" FACT, as a needed daily-ferret requirement!! I think, thanks to sukie, this HAS been adopted as true by many reports & studies. "Younger", or "older", whatever the answer, it will be just another `example` for either side of the differences between ferrets here, with our way of prepping kits for sale, and Europe`s `Preparation F`! I know what MY money would be on this one!!! THANK YOU, ANNETTE!! john rich. & the Gang. jdr. [log in to unmask] [Posted in FML issue 4667]