Why did T. rex have tiny arms?

Why did T. rex have tiny arms? The scientists believe small limbs gave the carnivores survival advantages. “I’m convinced that those proportionally tiny arms had some sort of function. The skeleton shows large muscle insertions and fully developed pectoral girdles, so the arm had strong muscles,” said Juan Canale, lead author of the study.

The scientists believe small limbs gave the carnivores survival advantages. “I’m convinced that those proportionally tiny arms had some sort of function. The skeleton shows large muscle insertions and fully developed pectoral girdles, so the arm had strong muscles,” said Juan Canale, lead author of the study.