Bionicle Vorox: True evolutionary origins revealed

Earlier I noted that I had come into contact with Milethi, a highly skilled Bionicle evolutionary scientist.  I tasked her with determining the earliest calculatable form of the Vorox of Bara Magna, and her work has borne fruit:

Based on recent and fossilized remains I provided, Milethi has assured me that with very little margin of error, this diminutive creature, barely larger than a Bohrok-Va, is the ancestral Vorox as it would have appeared between 50,000 and 80,000 of your "years" before the Shattering. 

Most troubling this is, indeed, as it flies in the face of history as we know it.  The Vorox are said to have once been proud, upright-walking, talking, very intelligent beings who received particular attention from the Great Beings themselves, only to later devolve into the beasts we know of today as a result of the cataclysm.  What we see here looks like a perverse larval form of a Zesk!  What could possibly be the explanation?

Hmm, the Zesk.  "History" tells us that the Zesk have a parallel story to that of the Vorox.  If the Vorox had such humble origins...

I must contact Milethi again.  I have a new assignment for her!