Impurities (Part 1)

An impurity is a minority ingredient that which makes something less than pure. I look out into the universe, and realise that matter is the great impurity in energy, and energy the great impurity in the void. In matter, all else is impurity in a sea of hydrogen, the heavier elements like grit in an oyster which must be carefully nacred and sealed away.

And then there are humans, the impurity in the organic scum upon the face of the earth. Humans, who like all other life here are mainly water with impurities. For what else to call organisms that are 70% water and 30% other substances (including substances from which more water can be extracted)?