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 ].
The largest Tyrannosaurus rex skeletons, including the famous behemoth known as Sue, once carried more than 18,000 pounds of muscle and flesh on their barrel-chested frames, according to the paper.