DNA-reading tool for quick identification for species. A biologist an a zoologist at the University of Florida were the first scientists to test the effectiveness of a high-tech handheld device designed to instantly identify DNA of an animal species (PLOS Biology, Dec. 2005.) They used the lusks with brightly colored shells. The scientists discovered that the error rate of the device is less than 5 percent. Set up the null and alternative hypothesis if you want to support your findings.