what habitat does and octopus live in?
1 The octopus can only be found in salt water, but they live in all the oceans. 2  The octopuses that live in warm waters tend to be small. 3  The ones that live in colder waters are much larger. 4  The octopus has a life span of 1 to 2 years. 5  There are about 300 known species of octopus. 6  The body of an octopus looks like a bag.