"Nothing is more humbling than to look with a strong magnifying glass at an
 insect so tiny that the naked eye sees only the barest speck and to discover
 that nevertheless it is sculpted and articulated and striped with the same
 care and imagination as a zebra.  Apparently it does not occur to nature
 whether or not a creature is within our range of vision, and the suspicion
 arises that even the zebra was not designed for our benefit."
                        [Rudolf Arnheim]