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William Yarrow is an alien that lives on Mars and has malaria. Will is 1,000,000,000 years old.
Guy-"Woah! a William Yarrow has just fallen from space!"
by Carlos Mae March 05, 2017
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A rare creature from mars it can fly with its balloon head also has malaria
A wild William Yarrow appeared
via giphy
by Science_Master March 05, 2017
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