European mink
The mating season happens from February to March. The gestation period is 35–72 days. The kits are given birth to in April and May. They give birth to three to seven kits. At birth, kits weigh about 6.5 grams (0.23 oz), and grow fast. They are born blind; the eyes open after 30–31 days. The kits suck milk for 2.0 to 2.5 months, even though the kits eat solid food after 20–25 days. They follow their mother to hunt by the age of 56–70 days. They leave the family at the age 70–84 days.