The biggest Tyrannosaurus rex (T.rex) ever discovered was a whopping 13 metres long and weighed more than 8800 kilos when it strode the earth during the Cretaceous period (that is one of the divisions of earth time) more than 60 million years ago.
This was discovered recently as scientists finished putting together the bones of the animal that were discovered almost 30 years ago in 1991. A team of paleontologists have been putting the bones of the animal together for several decades. Paleontologists are scientists who specialize in the study of fossils- remains of plants and animals found embedded in rocks that are millions of years old.
This find, which was made in western Canada, is bigger than all other dinosaurs whose remains have been found. While the giant carnivore’s skeleton was discovered in 1991, paleontologists spent more than a decade just removing the hard sandstone that covered its bones. Only now have they been able to study it and realize its uniqueness, which is not limited to its size. It is the oldest T. rex known having lived until the age of 30 years. This is unusually long for a T. rex.