What Jurassic Park got wrong: Study finds the T. rex was much bigger than we first thought

Our study suggests that, for big fossil animals like T. rex, we really have no idea from the fossil record about the absolute sizes they might have reached,

said paper author and paleobiologist Jordan Mallon, of the Canadian Museum of Nature, Ottawa, in a statement

There may have been ecological or biomechanical constraints that prevented T. rex from actually reaching such a huge size,