A newborn kit is so small, it can fit in a teaspoon. Kits usually triple their weight in just 10 days. The average weaning age of a kit is five to six weeks. Two weeks after weaning, jills can return to heat. Ferrets have a musky odor, which is caused by scent and oil glands in the skin.
Ferrets have anal sacs filled with a strong-smelling secretion.
Ferrets express their happiness by leaping around a room, dancing, twisting, and chuckling in midair. Ferrets have been in the United States for more than 300 years. Ferrets do not have well-developed vision. They cannot discriminate color, and they cannot see well in bright light. They can see better in dim light.