This is amazing. The most astonishing moment was when the octopus starts playing with the fishes, and in the same jovial mood, hugs the diver. Reminds me of times when I would get high on booze and in the same mood go on smiling at and hugging total strangers in the uninhibited state. To truly express my feeling of joy. This is tremendously advanced emotion, not to take any credit of the ingenuity of the creature riding on the back of its predator shark, or wrapping itself around with the shells. A must see for those mammals who think that they own the earth cause they can think. Who knows what the world would look like a million years after.