Jaques Cousteau did a nice book with lots of beautiful pictures a few years back on Cephalapods including octopi, you might be able to find it in a library if you look.
In the book it said that Puget Sound has the biggest (and some of the least aggressive) Octopi in the world and he took his ship to Puget Sound to film an annual octopus rodeo they had/have every year where scuba divers go out and try to catch the biggest octopi by hand.
He said that the divers told him that sometimes an octopus will grab their mask underwater and try to pull it off but if they grab the 'pus by the neck and shake it the creature will go limp.
I saw a show on T.V. where some people that run a large aquarium at some amusement park put an octopus (it looked about the size of the one in the picture above) in one of their tanks and they had some young 3-4 ft Tiger sharks in the tank and I'm thinking Uh oh, there goes the octopus, but guess what? The tiger sharks started dissapearing so they filmed the tank for a couple days and the octopus was grabbing the sharks as they swam by and was killing and (I assume) eating them!!!
I never knew they were so aggressive.
BTW, I alswo saw on a T.V. show that said there are some octopi that are deadly if they bite you, like the blue ringed octopus that lives in the meditteranean.
In the book it said that Puget Sound has the biggest (and some of the least aggressive) Octopi in the world and he took his ship to Puget Sound to film an annual octopus rodeo they had/have every year where scuba divers go out and try to catch the biggest octopi by hand.
He said that the divers told him that sometimes an octopus will grab their mask underwater and try to pull it off but if they grab the 'pus by the neck and shake it the creature will go limp.
I saw a show on T.V. where some people that run a large aquarium at some amusement park put an octopus (it looked about the size of the one in the picture above) in one of their tanks and they had some young 3-4 ft Tiger sharks in the tank and I'm thinking Uh oh, there goes the octopus, but guess what? The tiger sharks started dissapearing so they filmed the tank for a couple days and the octopus was grabbing the sharks as they swam by and was killing and (I assume) eating them!!!
I never knew they were so aggressive.
BTW, I alswo saw on a T.V. show that said there are some octopi that are deadly if they bite you, like the blue ringed octopus that lives in the meditteranean.