Is a octopus a mammal or a fish?

Answer 1

The octopus is an invertebrate, therefore it cannot be a fish, which belong to the group of animals known as vertebrates.

The octopus is a mollusc, and from the same group as squid and cuttlefish.

Answer 2

An octopus is as much a fish as a clam or shark is, in the sense that they live in the ocean. Octopi are in the class cephalopod. Cephalopods are easy to identify because they always have a set of tentacles.

Answer 3

Neither. It is a cephalopod, making it a member of the mollusc family.

Answer 4

No, an octopus is a mollusk, more specifically a cephalopod

Answer 5

No, they are cephalopods which are invertebrates. Fish are vertebrates.

Answer 6

No, though they are closely related to shell fish.

Answer 7

No, an octopus is a cephalopod.