the staff of the Ridgewood blog
Ridgewood NJ, a new study estimated that a staggering 2.5 billion Tyrannosaurus rex lived and died in the roughly 2.4 million years that the species roamed the planet. The species had a population density of around one individual per 40 square miles. Around 20,000 individuals were alive at any given time. The scientists note that the precision of the analysis was low due to uncertainty about the accuracy of the relationship between the animal’s body mass and population density.
The researchers noted that their estimated population density for the species would translate to roughly 3,800 T. rex in an area the size of California and just two in an area the size of Washington, D.C. and researchers were able to approximate that about 20,000 T. rex were alive at any given time that the species lived on the planet