This Shark Can Change Colour Using Crystals

By: NDTVNewsDesk

Image: Pexels

Blue sharks can change color thanks to tiny, crystal-filled structures in their skin.

Image: Pexels

These structures, called dermal denticles, act like nano-mirrors, reflecting blue light.

Image: Pexels

The spacing between the crystals can be adjusted, potentially allowing the shark to shift its colour to green or gold.

Image: Pexels

This colour-changing ability, similar to chameleons, is thought to aid in camouflage.

Image: Pexels

It's believed that environmental factors like water pressure might influence the spacing between the crystals.

Image: Pexels

The blue shark is a slender, pelagic shark known for its long pectoral fins, and pointed snout.

Image: Pexels

They are known for their speed and agility. They are also migratory and can travel long distances.

Image: Pexels

They are found worldwide in temperate and tropical waters, from the surface to as deep as 350 meters.

Image: Pexels

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