An artist's impression of a Tyrannosaurus Rex ... To inform the modeling of body size variance in adult T. rex, the researchers turned to living alligators, which sport both large sizes and ...

Tyrannosaurus rex was one of the largest carnivorous dinosaurs ... Another clue is the ratio of brain size to body size. Like smart modern reptiles, such as crocodiles and turtles, tyrannosaurs ...

The LEGO Dinosaur Fossils: Tyrannosaurus Rex set ... popular perception of dinosaurs from 30 years ago. This T-Rex's body's ...

Tyrannosaurus rex was a vicious hunter with ... while other traits did. Other T. rex body parts grew to colossal sizes to help them survive in their ecological niche. There might not have been ...

T. rex evolved in North America from Asian ancestors. Climate shifts and extinction events helped tyrannosaurids and ...

the Tyrannosaurus rex’s walking speed can be calculated by accurately simulating the movement of its massive tail. The animal’s tail made up a huge portion of its body mass and was filled with ...

rex hypothesis ... long and a total body length of about 5 m. On closer examination, the researchers spotted features consistent with a Tyrannosaurus but not a Nanotyrannus.

rex teeth sticking out of it," Lyson said ... and had puny arms with just two fingers. A younger Tyrannosaurus had a different body type than an adult - more gracile and speedier, and with ...