Mystery Of T-Rex's Tiny Arms Finally Solved? Scientists Reveal Shocking Theory - YouTube
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T-Rex's famously useless-looking arms may actually be a masterclass in evolutionary trade-offs — shrinking to survive the chaos of group feeding.
Evolutionary Trade-Off TheoryNatural SelectionCostly Signaling TheoryVestigial Structures
Theory Briefing
- A new study proposes T-Rex's tiny arms evolved to prevent accidental biting injuries during chaotic group feeding frenzies.
- Shorter limbs kept T-Rex's arms tucked safely away from other dinosaurs' massive jaws — a survival advantage, not a design flaw.
- This reframes the arms through costly signaling and evolutionary trade-off theory: losing limb utility gained life-saving protection.