Scientists debate if there is enough evidence to support three different Tyrannosaurus rex species. What are your thoughts? Read the article below to find out more.
exhibits a large degree of “proportional variations,” and therefore, it’s likely to be multiple species.], especially in the robustness of the skeleton and in the teeth," says study author Scott Persons, an assistant professor of paleontology at College of Charleston in Charleston, South Carolina.Persons says that researchers looked at the skeletal thickness of the upper femur and the teeth in the lower jaw.
"Modern biologists can come up with a relatively simple conclusion of what makes up a species based on those that can successfully reproduce," says Persons. "But we can’t know whether certain dinosaurs were able to reproduce, so we have to make inferences."
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