1. Are cuttlefish and octopus the same fish cuttlefish and octopus are not the same fish. Although they are both mollusks, they are quite different in shape and species. Cuttlefish, also known as cuttlefish and squid, belongs to squid of squid family. Octopus is the common name of octopus, which is an octopus of octopus family.
2. What's the difference between cuttlefish and octopus1. Appearance difference: cuttlefish is long, its whole trunk is bagged, its back is slightly flat, and there are fins on both sides of its trunk. Octopus's head is round, and eight brachiopods are evenly distributed around the whole circle.
2, different structure: cuttlefish have no brains, and their behavior basically depends on instinct and consciousness. Octopus have brains, and they can think before they act. Moreover, octopus's learning ability and camouflage ability are very strong, while cuttlefish will not have the consciousness of thinking. In addition, cuttlefish has 10 tentacles, while octopus has only 8 tentacles.
3. Different habits: cuttlefish like light, and they mainly live in the upper layer of water. Their habit also makes them easier to catch, and they can be attracted by light. Octopus like darkness, so they mainly live on the bottom of the sea. If the light is bright, they may feel uncomfortable.
