Recent research: They counted the number of T. rex that lived on Earth

A new study published in the journal Science aimed to do exactly that in the case of one of the most famous dinosaurs, Tyrannosaurus rex. Their calculations concluded that Approximately 2.5 billion people have walked the earth during its existence, Best of all, the researchers came up with this number without breaking fossils.

To figure out how best to calculate the total number of dead species, it’s a good idea to first look at how we do it with living species, and that’s where a little thing called Damoth’s Law comes into play. The law says so Average population density can be predicted from body sizeLarger animals have smaller populations compared to larger numbers of smaller animals. Think of it like a herd of elephants versus an ant colony.

T. rex is known for its large body size, being one of the largest carnivores known to science. By combining fossil data on the species with Damuth’s law, the researchers estimated the age of the species There were about 20,000 T-Rex alive at any given time, and approximately 127,000 generations more. They fulfilled their predatory duties. This brings the total population size from its appearance to its extinction to 2.5 billion T-Rex.

The fact that 20,000 T. rex lived on the planet at the same time can be inferred from the animal’s body weight and the fact that it is a cold-blooded predator.

This approach has great potential, according to the study’s authors, who say the method could be used to estimate the total population of any extinct species — provided we have the necessary information. According to Marshall, these include the species’ body mass, whether it eats meat or plants, and whether it is cold-blooded or warm-blooded. This information is then combined with data on their geographic range and how long they live.

(IFL Science)