Chihuahua saves owner who falls into crevasse, missing dog survives on remote island for nearly two years, bears show up at Colorado's Red Rock Amphitheater, 800-lb. bear gets largest dental crown ever made, rocks from the Moon and Mars fly to the earth, dinosaur fossil found in parking lot of dinosaur museum, new study shows turtles have feelings, orcas offer gifts to humans, cocaine turns up in England's shrimp, green pigeon spotted in North Hampton, highway rumble strip plays Beethoven, soccer-playing robots and much more!