These Sharks Don’t Just Glow Blue – They Use Nanotech to Shift Color Underwater

Blue sharks shimmer with one of nature’s rarest colors, but their glow isn’t just for show — it’s built from microscopic crystals and pigments hidden in their skin. Scientists have discovered that the shark’s tooth-like skin scales house guanine platelets and melanin vesicles that work together to produce a vivid blue hue. What’s more, these [...]

Jul 13, 2025 - 13:00
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These Sharks Don’t Just Glow Blue – They Use Nanotech to Shift Color Underwater
Blue Shark in Atlantic OceanBlue sharks shimmer with one of nature’s rarest colors, but their glow isn’t just for show — it’s built from microscopic crystals and pigments hidden in their skin. Scientists have discovered that the shark’s tooth-like skin scales house guanine platelets and melanin vesicles that work together to produce a vivid blue hue. What’s more, these [...]

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