Entertainment T-Rex Arms: New Theory Reveals Their Surprising Purpose by Lila Roberts - Entertainment Editor March 20, 2026 by Lila Roberts - Entertainment Editor March 20, 2026 T. Rex’s Tiny Arms: New Research Suggests a Fearsome Purpose For decades, the diminutive arms of Tyrannosaurus rex have puzzled paleontologists. Theories ranged from vestigial limbs with no real function … 0 FacebookTwitterPinterestEmail