Tyrannosaurus rex is the world’s biggest
The Tyrannosaurus rex that was discovered in west Canada in the year 1991 is claimed to be the biggest according to a team of palenteologists. The scientists assured this after the hardwork of reconstructing its skeleton. It took more than a decade to complete the reconstruction process. It is named Scotty. The discovers believe that it might have wrighed 8, 800 kilos and is 13 metres long.