@edgarblythe,
We are the only top predator mold that we know of. In evolutionary history, several top predators served their niche and were wiped out because they couldnt control theior environment like we.
If , in the universe, there exists a "top predator " model (I think probably that it is one of evolutions top ten ideas, so I wouldnt doubt it too much), it copuld take a path totally different than us.
The question is, are we the treminal top predator?