It turns out that all octopodes (octopi, octopuses) are venomous. It was once thought that only certain varieties of them were. More on all of this here.
This doesn’t particularly shock me, although I am always on the lookout for just about anything that has to do with the Octopoda order. Apparently, they might be able to use the venom to help create new drugs. All of this is well and good, although it does pain me a little bit to think that the cute guy on the front of my case is harboring venom. This just gives his friendly face a whole new layer of menace.