Great picture and interesting fact. I once saw a programme (probably Sir David Attenborough) about an experiment where an Octopus was presented with a glass jar with a cork lid. Inside the jar sat a large prawn and octopuses like prawns. It took two hours, but it figured how to open the jar and get the prize. Amazing. Funnily enough, some people refer to the plural of octopus as octopi, but that seems a bit fussy to me, an English speaker!