The evolution of humankind
An opposing digit, the use of tools
Inventing the wheel, exploring space
Brain size still developing
Two men and a referee
Foam gloves and a silver cup
Devolution about to begin
Round one, ding, ding!
A perfect right to the other's chin
No tools, wheels, or exploration
Brain size still developing
The evolution of humankind
The evolution of humankind
The evolution of humankind
The evolution of humankind
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