National Geographic Explorer Science of Dogs. Word Search Puzzle Solver. National Geographic Explorer Science of Dogs word Search Puzzle Game. Find words related to movie actors, actresses, and genres. Word Search Puzzle Solver. The dog is the ultimate human creation. With 400 breeds and counting the dog is more varied in size and behavior than any other species on the planet. National Geographic looks at man's evolutionary manipulation of dogs' appearance talents and temperament - and the accelerating efforts to create breeds to suit our needs (more than 80 percent of today's breeds did not exist 150 years ago). From desirable traits like supersensitive hearing and smell to the unintended consequences of genetic diseases learn how nature and man have partnered to deliberately create new and specialized versions of man's best friend. This includes identifying and searching for words that are related to : Rodd Houston, Gustavo D Aguirre, Fanelli, Mike Christman, Alice Moon, Trey Fondon, Gregory Acland, Adam Miklosi, Klim Sulimov, James Serpell, Documentary .