GLOWING ANIMALS: Pictures of Beasts Shining for Science

GLOWING ANIMALS: Pictures of Beasts Shining for Science
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Pig


How does it glow?


Green fluorescent protein, added to embryos (2006)

What can we learn?

Researchers at the National Taiwan University implanted green fluorescent protein into pigs. Seen above in ordinary light, one such pig appears yellowish. Under ultraviolet light, the pigs glow green.

Though earlier experiments had beaten the Taiwanese scientists to the glowing-pig punch, no one else had done it quite as well, the Taiwanese group said: Their pigs glowed inside and out.

The scientists hope to use the fluorescence to track the development of adult stem cells in the pigs, which are genetically very similar to humans.

—Photograph by Simon Lin/AP
 
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