The Cool Down on MSN
New research sheds light on origin of T rex's famously tiny arms: 'The head took over from the arms'
"It's a case of 'use it or lose it.'" ...
Why did T. rex have such tiny arms? Scientists now think it’s because its giant head became the ultimate hunting tool. Across ...
Discover Wildlife on MSN
T rex had absolutely tiny arms. We may finally know why – and it's all to do with its massive head
As the heads of giant, carnivorous dinosaurs got larger and stronger, their arms got smaller and ...
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