Researchers have long known that the meat-eating Tyrannosaurus rex had a teenage growth spurt, gaining around 35 to 45 pounds per week, to reach its colossal size. But up until now, it hasn’t been ...

WASHINGTON, April 15 (Reuters) - One of the traits that helped make the dinosaurs such an evolutionary success story - thriving for 165 million years - was their fast growth rate, from massive ...