Female ferrets need to be neutered to prevent them from developing aplastic anaemia, an unpleasant and usually fatal condition suffered by female ferrets who don't mate. It can also be prevented by allowing them to mate with a vasectomised male (as opposed to a neutered male), but these can be hard to find. Another way is with a "Jill jab," a hormone injection administered by a veterinary surgeon. There is some evidence that the Jill jab is the best way as it's less likely to lead to health complications than neutering.
Male ferrets need to be neutered because if they're not, during mating season they become very stinky sex pests.
For five ferrets, the largest cage you can afford as ferrets need room to move and exercise. Ferrets also need plenty of supervised time out of the cage for their health and welfare See related question and answer below for more information
Capon
Ferrets would need webbed feet to become semi-aquatic like the mink
Swiper the fox after he gets nuetered.
Ferrets are nocturnal and they normally sleep 15-20 hours a day. Ferrets need daily activities outside their cage of about 4 hours
There are numerous dangers to ferrets, You have to ferret proof their environment, ferrets need to be handle by a responsible person (no small kids), ferrets need a special diet, they are carnivores (meat eaters) and cannot digest fruits or vegetables. Ferrets can be prone to illness and disease if not taken care of properly. They could be perceived as prey by some dog breeds.
Ferrets do no need their anal sacs removed, it is considered mutilation.
No, ferrets cannot live in a plastic storage container, aquariums, etc. Ferrets need a large wire cage (cages made specifically for ferrets) with plenty of ventilation. Ferrets cannot be caged continuously and for their health, need several hours out of their cage daily.
What makes dogs different from ferrets - everything is different between dogs and ferrets. Ferrets are not anything like dogs, there would be too much to list here. You need to read and learn about what a ferret is.
Ferrets are legal, but depending on which city you live in, you may need a licence, check animallaw.com for details.
No, they can get nuetered at any point in their life, but preferably younger. I'd say around 9 months is a good age.
They Like to bite!