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First Known Glow-in-the-Dark Frog Discovered in Argentina

Scientists in Argentina have discovered a frog that glows in moonlight and at twilight. Fluorescence in terrestrial environments had previously only been traced to a few species of insects and birds and had never been scientifically reported in any of the world’s 7,000-plus amphibian species.

A team of herpetologists made the headline-grabbing discovery in the outskirts of the city of Santa Fe, Argentina, while collecting frogs to research the biochemical cloricia in amphibians. They sought out the polka-dot tree frog (Hypsiboas punctatus), a species found throughout South America, because its translucent skin allows the accumulation of biliverdin (a blue-green bile pigment) to be seen with the naked eye.

But when they shone a UVA light on the frogs, they did not see the faint red biliverdin emission they had anticipated. Rather, what they saw was a bright and beautiful cyan fluorescence. So luminous were the frogs that under the black light they glowed in the dark, helping the scientists locate specimens. This fluorescence was present in all of the 100-plus polka-dot tree frogs collected.


People in this world look at things mistakenly, and think that what they do not understand must be the void. This is not the true void. It is bewilderment.
- Miyamoto Musashi, The Book of Five Rings


  • Matt_ADMIN_Matt_ADMIN_ Administrator
    It's always interesting to see natural things "glowing" in the dark, from creatures to plants - I can understand why a lot of people considered remote areas to have magical qualities, especially with all the amazing things to be seen (and perhaps yet to be seen)
    "...Say, 'GOD is sufficient for me.' In Him the trusters shall trust." (Quran 39:38)
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