A unique nanostructure in their skin that produces their iconic blue coloration may also enable them to change color.

Blue sharks get their glow from hidden nanocrystals — and those same structures might let them subtly change color under ...

Learn more about the tiny crystalline dermal denticles, tooth-like scales that allow the blue shark to change colors.

Blue sharks are among the widest-ranging shark species in the oceans. We know this partly because from 1962 to 2013, 117,962 blue sharks were tagged as part of the ongoing Cooperative Shark ...