That's what most people do when they look at fossils of the impressive, eight-inch-long canines of the now extinct sabertooth tiger, Smilodon fatalis. The Vertebrate Analyzer is designed to help ...

Life Tyrannosaurus rex may actually be three separate species After analysing the teeth and thigh bones of 38 T. rex fossils, some researchers propose reclassifying them as three different species ...

A group of researchers is proposing that Tyrannosaurus, the most famous of all dinosaurs and the ultimate apex predator, actually includes three species and not just the single T. rex, based on ...