Step right up, come this way, see the amazing see through Chihuahua! Okay, it s really just a normal Chihuahua, but scientists in Germany caught the animal on high speed x ray film as part of a project to learn more about how canines move. This Chihuahua is one of 327 dogs from 32 different breeds videotaped, a project that the researchers hope will boost knowledge about dog anatomy and evolution. For example, did you now that the length of a dog s foreleg is always 27 percent of that of the entire leg, regardless of breed? Now you ve got something to talk about at your next cocktail party.