The Siberian Tiger, sometimes referred to as the Manchurian Tiger, is an endothermic quadruped in the kingdom of Animalia. It's phylum is Chordata and it's class is Mammillia. It's order is Carnivora and it's family is the Felidae. It's genus is Panthera and it's species is Tigris Altaica. The Siberian Tiger is a mobile creature and it lives in northern Asia and is found as for north as the Arctic Circle. It's territory is more than four thousand square miles and it will keep that territory indefinitely, as long as the food supply lasts. The Siberian Tiger hunts very much but only about one tenth of the hunts are successful. It requires more than twenty pounds of meat per day. It is heterotrophic and it's diet consists mainly of deer, boar, bear and fish. The Siberian Tiger is a solitary animal. Males and females are only together during mating season. Females will only stay with their litter of two or three cubs for less than two years. The Siberian Tiger is the largest cat in the world today. It measures thirteen feet long and weighs in at seven hundred pounds. It's cousin, the Bengal Tiger, is only seventy five percent it's size. The Siberian Tiger's thick coat is normally yellow with black stripes, however in winter, the yellow fades to near white for better camouflage. It's body is heavily muscled for great strength. It's hearing and sight are excellent, and it's night vision is five times better than a humans. The Siberian Tiger is now very rare and on the endangered species list, mainly because poachers illegally slaughter them for their fur. Currently, there are less than two hundred animals in existence.