[gleeaikin]

I have read that skull construction indicates that T Rex could smell rotting carcasses 20 miles distant. Some modern bears have the same ability. Fast legs would get him there before others found the food. Arms would not be very necessary to eat a stationary meal, and big jaws would scare or bite competing preditors and also allow big bites at a time. In other words his physical traits were more oriented to finding, eating and protecting food, not hunting and killing it.

[SunkenCiv]

The whole world was a buffet. FTM, it still is. 😁

• Paleontologists Stunning Conclusion: 2.5 Billion T. Rexes Roamed North America Over the Cretaceous Period [04/16/2021]
• Around 2.5 Billion Tyrannosaurus rex Ever Walked the Earth [04/15/2021]
• Scientists identify new, smaller 'cousin' of 9-ton T. rex [05/08/2019]
• 4-foot-tall T. rex cousin discovered, was a 'harbinger of doom' [02/22/2019]
• Sinister sound of Tyrannosaurus Rex heard for first time in 66 million years [12/10/2017]
• Researchers find first sign that tyrannosaurs hunted in packs [07/27/2014]

[Dr. Franklin]

In other words his physical traits were more oriented to finding, eating and protecting food, not hunting and killing it.

They certainly weren't oriented to picking up the check after a meal at the restaurant.