Researchers Reveal All Octopuses Are Sentient, But Not All Are Necessarily Smart

Ocean dive documentaries and word-of-mouth may have already told you about the intelligence of octopuses. However, researchers from University of Queensland's Brain Institute say this isn't exactly the case for every octopuses. An MRI scan of the octopods' brain reveals that these clever cephalopods weren't so clever after all, given the unfavorable circumstances.