Unique structures on the skin of the blue shark suggest it may be able to change colour like a chameleon, according to a new study.
The study, presented this week at the Society for Experimental Biology conference in Antwerp, reveals tiny nanostructures in the skin of the blue shark, Prionace glauca, that produce their colouration. The secret to the shark's colour lies in the pulp cavities of the scales that armour the skin, known as dermal denticles.