Tiny ancestor of king of the dinosaurs discovered

A mini-me T-rex which as the ancestor of the tyrant king of dinosaurs has been discovered by scientists.

The small but speedy flesh-eater was the size was a modern mule deer native to western North America being just up to four foot tall and weighing around 180 pounds. When it lived 97 million years ago it was not at the top of the food chain as giant allosaurs were the apex predators.