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The Flying Squirrel That Glows Pink Under UV Light – Nature’s Neon Surprise

By day it’s a fluffy woodland creature. By night? A pink-glowing mystery under ultraviolet light.

By SecretPublished 6 months ago 3 min read
The Flying Squirrel That Glows Pink Under UV Light – Nature’s Neon Surprise
Photo by Hasse Lossius on Unsplash

When you imagine a glowing animal, your mind might jump to deep-sea creatures or neon jellyfish — but what if we told you that a regular-looking squirrel can light up bright pink under UV light?

Meet the Flying Squirrel, a seemingly ordinary forest critter with a secret glow. 🐿️💖

It’s not a fantasy or Photoshop trick — this is real, verified science. Let’s unravel this pink mystery from the treetops.

What Are Flying Squirrels?

Flying squirrels are nocturnal rodents known for their ability to glide from tree to tree using a special membrane called the patagium — a stretchy flap of skin between their front and back legs.

There are about 50 species of flying squirrels, and they live in North America, Asia, and parts of Europe. They're adorable, fast, and rarely seen during the day.

They don’t actually fly like birds — instead, they leap and glide up to 150 feet, steering with their tail and patagium like little forest parachutists.

But what makes some of them truly special isn’t just their gliding… it’s their hidden glow.

The Glowing Secret Discovered

In 2019, scientists made an accidental discovery: when they shined a UV light on a preserved Southern Flying Squirrel (Glaucomys volans), it glowed neon pink!

This led to further studies, which confirmed that both live and preserved flying squirrels glow pink under UV light.

Even more shocking? This biofluorescence wasn't just in one species — it was found in all three North American flying squirrel species!

How Does the Glow Work?

The phenomenon is called biofluorescence — when an organism absorbs ultraviolet light and re-emits it as visible light.

In the case of the flying squirrel:

  • UV light hits its fur.
  • The fur absorbs UV and releases a pink glow.
  • The glow is not visible under normal light, only under UV (like blacklight).

The exact biochemical compounds that cause this pink fluorescence are still being studied, but it’s believed to involve porphyrins, natural pigments found in many animals.

Why Do They Glow?

That’s the million-dollar question — and we still don’t have a definite answer. However, several theories have been proposed:

1. Communication:

Since flying squirrels are nocturnal, the glow may help them identify each other in the dark using moonlight or ambient UV sources.

2. Camouflage or mimicry:

Some researchers think it might be used to confuse predators, or even mimic owls, which can also fluoresce under UV.

3. Accidental glow:

It might be just a natural byproduct of their biology with no real purpose, similar to how humans have glowing teeth under UV light!

🐿️ Fun Facts About Flying Squirrels

  • They don’t hibernate but stay active all winter, gliding through snowy forests.
  • They can make high-pitched squeaks and use scent glands to mark territory.
    • A group of flying squirrels sharing a nest is called a “dray.”
  • They’re excellent parents, often caring for multiple babies at once.

What Makes This Discovery Special?

Before this, biofluorescence was mostly known in marine creatures like jellyfish, corals, and deep-sea fish. Discovering it in a common forest mammal was a game-changer.

It also raises a big question:

How many other glowing animals are out there... hiding in plain sight?

Final Thought

The pink glow of the flying squirrel reminds us that nature always has more to show — if we look with the right light. What seems like an ordinary squirrel under the sun becomes a neon masterpiece under moonlight.

It’s a perfect example of how the most magical things can stay hidden until we shine a new perspective.

So next time you walk through the woods at night, remember — some creatures might be glowing pink… and you’d never know without a flashlight.

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