Scientist guess this beast delayed human migration into north america

They would not aim to kill. What is known is that the Tyrranasaurus Rex actually began eating carrion as it aged as it would grow tired of being tail whipped by quardupeds like the apatosaurus and the well… triceratops and Brontosaurus. The triceratops did not actually butt heads in battle, except playfully with it’s mate. It was like a hug or a squeeze to them. It also was a defensive evolution against tall carnivorous territorial predators.

The ichythaus (spelling?) Kinda ■■■■■■ it up over time. At first they would rescue eggs and breed them as part of their own heard. This explains the large variety of raptor. But later they began eating eggs… It wasn’t the worst thing until they began devouring entrie nesting grounds to emulate the larger dinosaur. Like the Utah raptor was actually an Allosaurus that had it’s opposable thumbs broken by the herd when it would pick up fallen trees so insects could carry pollen and seeds. It was a very peaceful large raptor but medium sized dinosaur.