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.
Males are typically twice the size of females, but both sexes undergo periodic weight fluctuations.
The average life span of ferrets is 9-10 years. Behavior Ferrets make wonderful pets because of their engaging personalities, playful activity and fastidious nature. They can be easily trained to use a litter box because they tend to habitually urinate and defecate n the same places. Provide a low-sided litter box for easy entry and exit. More than one litter box may be necessary if the ferret has free run of the house.