Some natural sights in Las Vegas will make casinos look just plain dull! Bats get a bad rap in the animal kingdom, but you've never seen them like this! And since bats and zombies often go together: "zombie subdivisions" are threatening what were beautiful, wide open spaces in the West. Good guys in Oregon use new technology to fight outlaws committing age-old crimes. The Colorado River serves a lot of needs, and that tug of war is getting critical.