lu' sus na • tu' ræ [L.] A sport (frisk, caprice) or freak of nature.

Our society is notable for it's extreme discomfort with anything, or one, that doesn't fit into a very narrow definition of "normal".  These 'others' tend to be catagorically rejected (as if invisible), treated with mistrust and loathing or painfully made to "fit in".

Keep in mind that true monstrosities can be lurking in packages of exquisite beauty.  And what a boring place this would be if everything were the same...