Top of the Food Chain

Tyrannosaurus rex dinosaurs were fierce, but there was an even bigger predator living 90,000,000 years ago. The Uglughbegsaurus uzbekistanensis, named after the 15th century mathematician and astronomer, Ughlugh Beg, was twice as big as T-rex. Paleontologists found the apex predator’s massive jawbone, still full of shark-like teeth, in Uzbekistan.