Date: Sep 05, 2004 - 08:18 AM
Brian Handwerk
for National Geographic News
August 11, 2004
Teenagers are known for rapid growth spurts, but some 65 million years ago juvenile Tyrannosaurus rex dinosaurs may have outstripped them all.
Studies indicate that between 14 and 18 years of age, T. rex grew from a 1-ton dinosaur into a 6-ton colossus—adding as much as 5 pounds (2.3 kilograms) a day. The animals reached full adult size by about age 20.
The rapid growth spurt explains how the legendary carnivores became gigantic—by growing at a much faster rate than many of their dinosaur relatives.
Read the full story
here
Dino-Size Spurt: T. Rex Teens Gained 5 Pounds a Day
Linear Mode
