It takes a lot of number crunching to figure this out, everything from average lifespan to sexual maturity to the number of T. rex eggs that survived has to be calculated and factored in to reach an estimate.
While 1.7 billion is undoubtedly a large figure, it's some 800 million dinosaurs fewer than the estimate reached by a 2021 study. The latest analysis is based on the most up-to-date information we have on dinosaur growth and reproduction, and it looks to be the more accurate one.
"Unlike my model, the generation time as well as life expectancies, gross reproduction rates, and reproductive values of individuals calculated from the previous model all strongly contradicted our current understanding of the biology of T. rex and of other theropods," writes evolutionary ecologist Eva Griebeler from the Johannes Gutenberg University of Mainz in Germany.
Scientist Figures Out How Many T. Rex Ever Existed, And It's Terrifying
While 1.7 billion is undoubtedly a large figure, it's some 800 million dinosaurs fewer than the estimate reached by a 2021 study. The latest analysis is based on the most up-to-date information we have on dinosaur growth and reproduction, and it looks to be the more accurate one.
"Unlike my model, the generation time as well as life expectancies, gross reproduction rates, and reproductive values of individuals calculated from the previous model all strongly contradicted our current understanding of the biology of T. rex and of other theropods," writes evolutionary ecologist Eva Griebeler from the Johannes Gutenberg University of Mainz in Germany.
Scientist Figures Out How Many T. Rex Ever Existed, And It's Terrifying
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