Octopus and Lionfish

Came across an Octopus. I've been reading about them lately and they are really fascinating. They have 9 networked brains with 500 million neurons which puts them in the same category as dogs on that basis. Their intelligence evolved 230 million years before mammals. Their blood is blue because it contains copper. Oh, also speared a Lionfish. Filmed 13th Feb.2021 in Castle Harbour, Bermuda.