Dreaming is not a sign of intelligence, it is just a quirk, there is no reason other intelligent species must dream. Octopuses are intelligent, but their nervo

Dreaming is not a sign of intelligence, it is just a quirk, there is no reason other intelligent species must dream. Octopuses are intelligent, but their nervous system is very different from ours, less centralized. We think they might dream, but it might just be anthropomorphism.