Tigers grow up to 3.5 feet tall at the shoulder, and the largest, Siberian tigers, weigh over 675 pounds. Male Siberian tigers are bigger than their female counterparts as well as Sumatran tigers, which only grow to be about 310 pounds. A Siberian tiger's body can reach over 11 feet.
The body sizes of the different breeds of tigers differ. Tigers living near the North Pole tend to be larger. Regardless of size and living area, tigers have fallen victim to both poaching and habitat destruction. As more than 90 percent of their habitat has been destroyed, tiger species of all sizes have gone extinct.