T. Rex, "tyrant lizard king," was one of the largest-ever meat eating land animals. The bi-pedal giant grew to some 40 feet (12 meters) and weighed up to 7 US tons (6.5 metric tons)
T. Rex was one of the largest-ever meat eating land animals. The bi-pedal giant grew to some 40 ft (12 meters) weighed up to 7 US tons (6.5 metric tons) and sported teeth that were nearly a foot-long (centimeters) with the root.