Therefore,
🦈 blue shark can change:
Unlike its evocative name. For example, the blue shark (Prionace glauca) hide an unsuspected capacity: modify its color. Therefore, A team of Hong Kong researchers has identified nanostructures in their skin. Moreover, similar to those of chameleons, opening prospects on its adaptation to the marine environment.
Dermal denticles of the blue shark.
Credit: Doctor Viktoria Kamska
This discovery is based on the fine analysis of the denticulated scales of the shark. In addition, revealing a sophisticated optical mechanism. Furthermore, Scientists suggest that these structures could react to theenvironmentoffering an unprecedented camouflage advantage among the Squales.
A nanometric mechanism – 🦈 blue shark can change
The blue color of the shark comes from guanine crystals. reflecting the light blue, associated with melanosomes absorbing the other lengths ofwhere. These 🦈 blue shark can change elements, encapsulated in separate cells, act as a mirror selective and a filtered absorbent. The spacing between the layers of crystals determines the shade: tightened. they produce blue; enlarged, they switch to green or jaune. Digital simulations have confirmed this flexibility, although its activation natural remains to be observed in situ.
This system recalls that of chameleons. but with an evolutionary feature specific to sharks, separated from bone fish for millions of years.
An environmental adaptation?
The researchers hypothesize that the water pressure in depth compresses the crystals. darken the skin To better blend into the abyss. Such an adaptation would be a first demonstrated in a shark, although other species show similar signs.
Potential applications already inspire biomimetic engineering. Structural coloring, less polluting than chemical pigments, interests in particular the maritime and textile sectors.
Finally, this study highlights the diversity of animal strategies to produce blue, a 🦈 blue shark can change rare color in nature. The sharks thus offer a new model to understand the evolution of optical mechanisms.
🦈 blue shark can change — 🦈 blue shark can change: Unlike its evocative name. the blue shark (Prionace glauca) hide an unsuspected capacity: modify its color. A team of Hong Kong researchers has identified nanostructures in their skin. similar to those of chameleons, opening prospects on its adaptati.
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