Humans have always
peed and pooped,
but where it goes
after we’ve
done our business
has changed a lot.
In fact: The water
you just drank may
we
(more)
Humans have always peed and pooped, but where it goes after we’ve done our business has changed a lot. In fact: The water you just drank may well have been a part of someone’s urine just weeks ago! SciShow explains!
Hosted by: Hank Green
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