These reef crabs glow to hide — the glowing camouflage that fools predators

Nature keeps surprising us — and this time, it's glowing reef crabs stealing the spotlight. Scientists have discovered that some crabs have evolved the ability to absorb sunlight and re-emit it, creating a glowing effect that helps them hide in plain sight.

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синий краб

At first glance, glowing might seem like the opposite of camouflage. But for reef crabs, this natural fluorescence blends perfectly with the shimmering environment of coral reefs.

According to new marine observations, these crabs glow in a spectrum that matches their surroundings — a clever trick that confuses both predators and prey.

How glowing helps crabs hide

Myths and truths about marine glow

• Myth: Only deep-sea animals use bioluminescence
  Fact: Fluorescence is common in shallow reef species too.
• Myth: A glowing shell makes crabs stand out
  Fact: It actually helps them vanish into coral light patterns.

FAQ about reef crab camouflage

• Do they glow naturally? Yes — pigments in their shells fluoresce under light.
• Is it for signaling? Mostly camouflage, but communication isn’t ruled out.
• Are there other glowing animals? Yes — coral, some fish, and even sharks.

Fun fact: Researchers believe this glowing armor could inspire future camouflage materials in human technology, mimicking the brilliance of coral reef light.