If you ever see one of these Cuttlefish consider yourself lucky. They have 3 hearts, green blood, and can not only change color and texture, but can actually polarize light. They are the Rocket Scientists of the reef, extremely smart with a high developed eye. If you look for them on every dive in Wakatobi, you won't see one every dive, but every other day or so is my average, and I always look for them.
From Ikelite Photo school