Whenever it feels threatened.
It depends on what kind of octopus .
an octopus is not a devilfish
An octopus has bilateral symmetry.
It depends on the application. What kind of gun? What are you intending to shoot?
an octopus breathes through its pair of gills.
ceplapoda
invertabrate
it Depends on what kind of movie you would film..
sloth
Maybe, it only works on certain kind of octopus
Whales eat octopus [sperm whales have giant octopus as a favorite food]. Octopus eat each other octopus. Humans eat octopus. Anything that can catch an octopus (that isn't easy) will eat it. Killer whales [or Orcas, a kind of toothed whale] eat octopuses.
it is a type of octopus