awoods5000

The Tyrannosaurus Rex was the most dominant apex predator earth has ever seen. Nothing in the T-rex's territory during the late cretaceous could take it on in a fight. What other predatory dinosaurs lived in a time where they had no rival predators?

how many years did amphibians, insects and crustaceans rule as the only land animals? What animals were on the top of the food chain during that time?

We know a lot about the T. rex brain. do you think it was the smartest dinosaur of the late cretaceous?