[BirAdam]

You should keep in mind that octopuses don’t live very long. The intelligence they gain in their very short lives is remarkable. Add to this that they live in water and therefore can’t have fire and can’t have writing. It’s not just brain power that matters… I don’t know that humans are the smartest critter on the planet, we may just be the most learned and the most able to exploit our surroundings. It’s cool and all, but I really don’t know for sure that humans are “smarter” than octopuses, porpoises, or orcas. We’d need evidence that didn’t rely on particularly human stuff.