It sprays poison out and distracts the moray eel by covering the eyesite, and waisting its time. Then, the moray eel sucks up the poison, and the blue ringed octopus comes to attack the moray eel, and poison the body.
If shooting ink isn't enough defense to scare off a predator, an octopus can go on the offensive with its tentacles and a beak-like mouth.
An octopus's main defense is to hide by camouflaging itself and avoid being detected as an octopus.
Octopuses are also venomous, but only the small blue-ringed octopuses are lethal to humans.
Although it has no teeth, an octopus can take a also chunk out of you when it bites, and most have poisonous saliva that can immobilize or even kill larger animals.
Its beak, similar in shape to a parrot's beak, is the only hard part of their body.
In a battle between a shark and an octopus of the same size, bet on the octopus. It'll win almost every time.
The octopus squirts a black cloud of ink and gets away as fast as possible, leaving the eel confused in the black cloud of ink surrounding it.
It hides in the sand or campfloges it'self to look like a octopus
they use there special ink to defend them selves
he defend his self by flying
its stench
it smashes butterfree and pikachu
Sickle Cell Disease, Acquired Immune Deficiency Syndrome (AIDs), Gonorrhoea and Haemophilia are some diseases that the body cannot defend itself against. :D
The octopus sprays a amount ink (when being attacked) .Then it swims away.
The immune system produces antibodies to defend against allergens.
The Anti-Defamation League (ADL) was formed by the Independent Order of B'nai B'rith in 1913 to combat anti-Semitism and defend Jewish people against verbal attacks and false statements.
Humans and other animals!
By biting the predators with their venomous fangs.
It doesn't look like Iran is trying to defend itself, Mahmoud Ahmadinejad is theatening to use nuclear weapons against Israel.