Such a scenario would never have actually happened. T. rex and Giganotosaurus did not live at the same time, in the same place, or even in the same environment. Both theropod dinosaurs roamed the ...

Don Lessem was the dinosaur adviser for the first Jurassic Park, a job he says sounds more impressive than it was. His real big-dinosaur break happened years later, thanks to a blurry photo of a bone.

When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. Giganotosaurus was one of the largest meat-eating dinosaurs. It roamed modern-day Argentina ...