Underwater Photos of Spectacular Colors - Sea Creature Usually Thought of as Ugly

These stunning images capture the amazing skin of the bobtail squid, who use thousands of cells to change colour.  The cephalopods have translucent skin with pigments called chromatophores, which appear as small patches or dots. They use the cells to transform so they can attract a mate or blend into their surroundings.
Underwater photographer Todd Bretl took the incredible pictures during one of his many expeditions into the sea.

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