Jellyfish = ½ billion yrs, homo sapiens non sapiens = ¼ million yrs - Jellyfish wins
Rembrandt's great painting of Aristotle contemplating the bust of Homer speaks volumes about his reverence for human intelligence. However, while there is no way to prove this absolutely, it seems likely that some species of jellyfish have been around, morphologically unchanged, for more than a half billion years. The same could not be said of humans. We now appear about to exit after only a quarter million years, taking the rest of life with us. Somehow, this doesn't seem to add up to great intelligence.