The DNA study revealed the similarities in the evolutionary path of chimps and humans, supporting the call to reclassify chimpanzees, who scientists believe are most closely related to humans than other great apes. In 2003, researchers at Wayne State University in Detroit, again ignited the debate when they found that 99.4percent of the most critical DNA sites are identical in human and chimp genes, prompting the lead researcher, Morris Goodman, distinguished professor of anatomy in the Wayne State School of Medicine, to declare that chimps and humans should be brought together under the same umbrella genus, Homo.