The glowing beagle was born two-years-ago thanks to a cloning technique which boffins claim could be used to find cures for diseases including Alzheimer's and Parkinson's.
Tegon's luminosity - which can be seen under ultraviolet light - is said to be controlled by adding a doxycycline antibiotic to her food at Seoul University.
While the £2million research could lead to huge leaps in medical science, it's already solved one of life's great questions, are dogs or cats the brightest.
A spokesperson for the research said: "The creation of Tegon opens new horizons since the gene injected to make the dog glow can be substituted with genes that trigger fatal human diseases."
