I think we're going to find that octopodes are smarter than possibly anything else on the planet, except higher order primates. We see high intelligence in non-primate mammals like cetaceans and pigs, but octopodes have the capability of tools use due to their tentacles. And while we see simple use by birds and dolphins (for example), octopodes have much more manipulative ability, very much like primates with hands and feet. I wonder what they could be in another million years.
