This 2013 video is called Camouflaged Octopus Makes Marine Biologist Scream Bloody Murder
Another video used to say about itself:
Amazing moment marine creature camouflages itself against a reef is captured on video
4 February 2015
Octopus shocks diver with its amazing camouflage skills
A diver was shocked to see an octopus emerge from the rocks during a dive in the Caribbean. Its amazing camouflage abilities meant it was barely visible before revealing itself.
Spot the octopus!
Rare glimpse into how coral procreates could aid future conservation: here.