Scientists in Uruguay announced this past Wednesday, the birth of the first genetically-modified phosphorescent sheep who glows in the dark when exposed to certain ultraviolet light, emitting a glowing green color.

The sheep were born last October along with eight other sheep at the Animal Reproduction Institute of Uruguay. They were immediately injected with the phosphorescent gene from a Aequarea jelly fish, which is responsible for production of a green fluorescent protein.

Alejo Menchaca, the leader of the Uruguay research team, told the media that the sheep have developed normally and are healthy. They just glow.

The term “phosphorescence“- meaning glow after illumination, originally derives from this property of phosphorus; although this word has since been used for a different physical process that Glow in the dark sheepproduces a glow. The glow of phosphorus itself originates from oxidation of the white (but not red) phosphorus— a process now termed chemiluminescence.

Phosphorus (Greek Φωσφόρος Phōsphoros), a name meaning “Light-Bringer”, is the Morning Star, the planet Venus in its morning appearance. Another Greek name for the Morning Star is Ἑωσφόρος (Heōsphoros), which means “Dawn-Bringer”. The Latin word corresponding to Greek Phosphorus is “Lucifer”.

Hence, meet Lucifer,  the Genetically Modified Phosphorescent Glow in the Dark Sheep.

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