I was sent an email with a series of spectacular images of individual animals/birds/fish in their natural splendour. Some were the displays that birds put on to attract a mate. Others were displays of 'camouflage' in foliage or surroundings etc. Some were of exotic colourful tropical fish.

But the one that caught my eye was this Octopus which appears to have a collection of 'blue insulators' lit up around its tentacles! What Cd are they I wonder!