Siberian tigers live alone and only come together in mating season. The mating season usually begins in December, and lasts through January. Females are pregnant for around three to three and a half months before giving birth to their cubs in early spring. Females usually give birth to around 3–4 cubs at a time. When born, the Siberian tiger cub is blind and toothless and is no larger than a normal house cat. It stays blind for around two weeks. The mother starts teaching the cubs how to hunt when the cubs are around 1 year old. The cubs then stay with their mother until they are 3–5 years old.