It all depends on which species you look at. /
It appears to vary from species to species. For example, Octopus aegina has it; but Octopus vulgaris does not.
Here are some diffrent species: REUBESCENS, DOFLEINI, VULGARIS, CYANEA, BRIARIUS, MACROPUS, and DEFILIPPI.
No, I don't think so, because we are allowed to eat them. nomz
Octopuses have the ability to camouflage and they pounce on their prey. Most octopuses hunt at night. The giant octopus usually feeds on bivalves, crabs, and lobster, but will eat a range of species. They have also been observed eating fish, sharks, and even birds.
Synapomorphies of invertebrates are animals species that do not possess or develop vertebral column. The species that are invertebrate are crab, lobster, snails, clam and octopuses.
There are exactly 289 different octopus species. Here is some more information about octopuses and their different species: http://en.wikipedia.org/wiki/Octopus -GLOWSTICK.
Coconut trees are not a native species in Ireland as the natural habit is not conducive to their growth.
Octopuses are in the phylum Mollusca. Their full scientific classification is: Kingdom: Animalia Phylum: Mollusca Class: Cephalopoda Order: Octopoda from there octopuses are broken down into Families, and finally Genus and Species.
Dumbo Octopuses aren't really endangered. They just live so deep in the ocean you don't see them too often
Octopus is commonly known as the devil fish. There is no species of that name "Devilfish Octopus". But octopuses have a large variety in sizes as well in species. here is a website with a list of species and their sizes.
other octopuses kill octopuses!!!! :-D