A cloned beagle named Ruppy – short for Ruby Puppy – is the world’s first transgenic dog. She and four other beagles all produce a fluorescent protein that glows red under ultraviolet light.

South Korean scientists produce dogs that glow red under ... The cloned beagle puppy is the world’s first transgenic dog, producing a fluorescent protein that glows red under ultraviolet light.

REUTERS/Jo Yong-Hak A foot of a cloned fluorescent dog Ruppy, a seventeen-month-old beagle, glows in the dark under ultra-violet light at Seoul National University's College of Veterinary Medicine ...

But under the cover of darkness, she can glow an eerie green. South Korean scientists say they have created a fluorescent dog using a cloning technique that could help find cures for human ...