There are several varieties of ferrets, based on coloration.
Albino ferrets are white, with pink eyes.
There is also the Siamese ferret. Kits are born deaf, with their eyes closed. Their eyes open and they begin to hear between 3 and 5 weeks of age. Kits generally are weaned onto commercial kitten chow at 4-8 weeks of age. Kits reach their adult weight at 4 months of age.