Comments by "Old Guy Gaming Network" (@CRAZYHORSE19682003) on "Why did T. rex and Other Dinosaurs Have Tiny Arms" video.

  1. In the dinosaur arms race, prey species got bigger and bigger so the predators had to get bigger. Eventually they were so large grappling would have been a death sentence to they evolved larger and more powerful jaws and their arms atrophied due to natural selection.
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