The bones of an early member of our species, Homo sapiens, known as Omo I, excavated from Ethiopia's Kibish rock formation. The bones are kept in the National Museum of Ethiopia. When the first bones from Omo I were found in 1967, they were thought to be 130,000 years old. Later, 160,000-year-old bones of our species were found elsewhere. Now, a new study by scientists from the University of Utah and elsewhere determined that Omo I lived about 195,000 years ago -- the oldest known bones of the human species. (Credit: John Fleagle, Stony Brook University) (Click on image to view larger.)