List the 4 basic principles of genetics that mendel discovered in his experiments. briefly describe each princeiples.
Results showed T. rex was heavier than previous estimates, which ranged from about 4.5 tons to 6.5 tons, with the Field Museum's Sue skeleton weighing a heaping 9 tons (about 8,164 kilograms). [ Gallery: The World's Biggest Beasts ].
Measurements of Sue suggest T. rex was one of the largest carnivorous dinosaurs to ever live, coming in at up to 13 feet (4 meters) tall at the hips (the beast's highest point since it did not stand erect) and 40 feet (12.3 m) long.