Environmental researchers from Oxford University recently made an astounding discovery. More than 33% of Earth's plant and animal species exist on a scant 1.4% of the planet's surface. They identified 25 "hot spots" covering a total of 810,000 square miles and were surprised by the "riot" of life they found occupying such a relatively small portion of land. As a result they suggested that conservationists use a "silver bullet" approach and concentrate on saving pieces of the hot spots from logging, slash and burn agriculture or other fates.