Cephalopod Intelligence as Earth's Alien Consciousness

Cephalopods have an extraordinary evolutionary history concerning intelligence, having diverged from vertebrates over 600 million years ago. Their unique nervous system, which is mostly decentralized, complicates traditional human-centered views; about two-thirds of an octopus's 500 million neurons are found in its arms rather than in a central brain. These ocean dwellers show remarkable skills in problem-solving, memory, and communication, using color changes. For instance, octopuses can solve puzzles, navigate mazes, use coconut shells for shelter, and wield Portuguese man o' war tentacles as tools. Cuttlefish exhibit patience and rely on visual signals. In controlled settings, octopuses recognize individual humans and display distinct behaviors. Philosopher Peter Godfrey-Smith explores these themes in his 2016 book, 'Other Minds.' Their intelligence showcases adaptability and precise motor skills, hinting at insights into consciousness beyond Earth.