Because it blends in the surroundings.
It will only turn green if the seaweed it is sitting on is green. It turns colour to blend into the background so that it can not be seen by it predators or its prey.
To kill it you bite/stab/smash its brain between the eyes, immediately killing it. The octopus skin then turns white when its dead. http://www.youtube.com/watch?v=TGIDa0J4Zn4&feature=related To cook, you can batter it like calamari...boil, then roll in flour, and cook in hot oil. Or, you can boil it and eat with salt, limu seaweed and green onions.
To kill it you bite, stab or smash its brain between the eyes, immediately killing it. The octopus skin then turns white when its dead.
it turns black
yes
NO! copper turns green
China rose turns green when added to soap solution as it is a base
the chlorine, it also turns blonde hair green, trust me
The boxwood tree turns dark green after it dies. It is the only species of tree that turns that color after its life has ended.
it turns green cause it feels like it
green
It's where a glitch turns cp green! ~Sap333~