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What can this glow-in-the-dark kitten teach scientists about AIDS?

This picture of a glowing cat has not been altered in any way. The cat, on the other hand, has been altered quite a bit. A team of researchers has genetically engineered it to express green fluorescent protein (aka "GFP," originally found in jellyfish), which makes the cat glow green under ultraviolet light. » 9/12/11 5:00pm 9/12/11 5:00pm