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20 quadrillion. That's 20 million billion. So given there are roughly 10 billion human beings on earth then the ants outnumber us by a factor of two million.

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However, at 5 milligrams each the 2 million ants are only about a leg full.

But that leg must weigh more than a person because their total biomass of 12 megatons is "more than all the wild birds and mammals taken together".

Apologies, to clarify I meant a leg full of ants per person.

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