The blue ringed octopus has been known to kill humans. It injects a paralytic venom that leads to paralysis, and subsequent respiratory failure. While artificial respiration is advised, there is no known antidote for this venom. The Pacific Octopus is also capable of killing a human being, but this phenomenon is incredibly unlikely, and almost unheard of.
No.
NO it is not a fish
8
Octopuses don't!
No.
Yes
Depending on species you have a large variety of sizes.
On my calculations the blue ringed octopus is more dangerous than the blue lined octopus because it is very poisonous and it has no cure.
Seals, sharks, eels, and even other octopuses.
yes
Yes they are cold blooded
guns dont kill people, people kill people.