The figure was simply mind-blowing. According to researchers, there were no less than 1.7 billion T-Rex on Earth 65 to 68 million years ago (before the arrival of the famous asteroid Chicxulub).
Estimating the number of individuals of an extinct species is not easy. To achieve this, the scientists had to take into account a large number of parameters, such as the average number of eggs laid, estimated life expectancy and the survival rate of T-Rex.
Estimating the number of individuals of an extinct species is not easy. To achieve this, the scientists had to take into account a large number of parameters, such as the average number of eggs laid, estimated life expectancy and the survival rate of T-Rex.