Amur, or Siberian, tigers are the largest living cat. Males weigh 180-306 kg (396-673 pounds) and females weigh 100-167 kg (220-367 pounds). They are orange and white with black stripes which help them blend into tall grasses or forest undergrowth. Females have two to four cubs in a litter after a 105-day gestation and the young typically stay with her for two to three years. They eat deer, pigs, antelope, buffalo and a variety of small mammals and birds.