Octopuses and whales are two of the most interesting cases of high-level intelligence. Many species of whales actually have much more dense folding than our bra

Octopuses and whales are two of the most interesting cases of high-level intelligence. Many species of whales actually have much more dense folding than our brains, and they are of course much larger. I know that larger brains are thought to be required for larger bodies, but I haven't seen reflection on that that considers aquatic animals have have different energy efficiencies than land based mammals. Given the social cohesion of some species, like orcas, I would not be surprised if their intelligence actually exceeds ours. The other thing is that I think humans greatly and consistently underestimate the intelligence of almost all animals.