Do you think you're human?
Maybe you think your friends are human, too.
And your parents,
...and your children.
Well, think again, and take a closer look.
Scientists have done some more investigating and measuring (they're always up to something like that) and our humanity seems to be in question, or at least even more interdependent than we ever thought...with creatures we never see, whose existence we can't fathom.
Of all of the cells that make up what we call our bodies, only 10% are human!
Read more in WIRED