A deep-ocean dweller. It has a soft body, because it has no bones. The octopus is capable of squirting black ink when frightened or angered. It also is not considered a amphibian, mammal, or reptile. It is most closely relevant of the fish species.An octopus is one of the most intelligent creatures in the ocean. Able to pop a can to gain access to food, this incredible animal used to carry a shell.animals that live in salt water. animals that live in salt water.They are cephalopod mulluscs and also they are underwater animals tht have eight to 10 legs and when they have babys they die