Octopus

Yes, an octopus is a shellfish. It is also a mollusk which is a shellfish.

no because the jellyfish has sting rayz and it can sting the octopus to make it painfull to eat..

In deep water

They take on the heat of their surroundings

No, octopuses and cuttlefish are two different orders, Octopoda and Sepiida, respectively. However, they are both of the class Cephalopoda, which also includes squids. To put it simply, they are two different creatures within the same class.

They are not endangered. Nor are they threatened. They are in fact sensitive to polluted waters.

They are generally solitary, and if they reproduce, they don't have much contact with their babies.

they eat small crabs and they eat about every thing all the other octopus eat

Octopuses do not change colors but when they mate the ospraing will developed a color between the 2 parents color.Sorry

The blue ring octopus puts its head first and its tentacles trail behind

other than the blue ringed octopus which is toxic, they are harmless to people. octopus are amazingly inteligent animals, and can remember a person that they met for up to two years without seeing them. they are naturally shy, but when aclimated to humans, they can be quite inquisitive.

Usually octopuses have three hearts. I'm not really sure what would happen if they only had one heart. But their brain is very large, and needs blood pumped into it constantly. If they need three hearts to do that, I suppose with only one heart, it wont be able to use its brain capacity that much.

Its habitat was defined as the forests of the Olympic range in western Washington, in the Puget Sound region.

However, The "Pacific Northwest tree octopus" lives exclusively in the land of imagination. The tree octopus website was a 1998 internet hoax that was intended as a parody of actual ecological awareness groups. Occasionally individuals will mistake the site as one promoting the preservation of an actual animal. A small following has provided fake photos, testimonials, and other material.

Dolphins have been known to eat octopus, squid, and other type of sea life, including different types of fish. They may also eat seals or sea lions.

The shape of an octopus' pupil is square-shaped.

Yes! When an octopus is in danger, the octopus would squirt ink out and swim away.

It's hard to predict the exact impact of any one species extinction. When the ecosystem is disrupted enough, it will collapse and do so quite rapidly. Will the loss of the octopus trigger the collapse? You just never know. At the very least, the people who like to eat, look at, or sell octopus will be effected.

if they live in an aquarium they eat about 15 pounds a day :)

anawered by alexis smith follow me on twitter

The whole species of octopus is not entirely endangered, but there are some subspecies that are endangered, threatened, or close to being endangered:

The Giant Octopus, a giant but gentle octopus, is listed as "Endangered" on the ICUN Redlist.

yes

Yes. The only known cephalopod with poisonous flesh is the flamboyant cuttlefish.

This Big, what you want me to tell you

Indeed it does :)

Yes, most octopuses and their relatives in the cephalopod family squirt some manner of ink, although deep-sea cephalopds usually squirt a bioluminescent equivalent that leaves their would-be predator at risk of attack in the darkest parts of the ocean.