8
No.
NO it is not a fish
Octopuses don't!
Yes
No.
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
How many legs do penguin have
I have no idea how many legs a buttfly has. Butterflies have six legs.