Scientists have discovered evidence that some of the earliest members of the human race, Homo sapiens, were surprisingly advanced. Scientists say these early humans knew how to use color pigments found in nature, create advanced tools and trade for supplies with other groups of people. A report on the discovery was published recently in the journal Science. The scientists said they examined artifacts recovered from southern Kenya. Some of the objects are said to date back to 320,000 years ago. They are about the same age as the earliest-known Homo sapiens fossils found in other parts of Africa.