An estimated 110,000 Americans died each year from tuberculosis in the 1900's. The tuberculosis mortality rates of Virginia were one of the highest in the nation. In 1908-1909, an estimated 12,127 people were infected with tuberculosis.
An allosaurus adult was between 8.5 and 12m in length (28-39 ft), while the average T. Rex adult was about 12-15m long (40-50 ft). The average height of an allosaurus was 17ft (a little over 5m) while T. Rex was about 23ft (7m) tall on average.
Some claim T. rex could run at speeds up to 72 kilometers (45 miles) per hour. But biomechanics researchers argue that the animal moved much more slowly, perhaps only about 16 kilometers (10 miles) per hour--about as fast as an average human runner. These experts say size slowed T. rex down. But why is it so hard to be big and fast?