Transparent Mice Offer a Front-Row Seat to Inner Anatomy

Biologists have long wished for superhero-like X-ray vision to see right into organs or even the whole the body. Imagine the possibilities: watching where cancer cells go when they metastasize, tracking an asthma drug's effect on the lung's airways, or zeroing in on neurons in the brain. A team of researchers at the California Institute of Technology have realized that dream of peering deep into the body. In a study published yesterday in the journal Cell, they demonstrate how to tur