Agence France-Presse: Early humans living in South Africa made cultural and industrial leaps in periods of wetter weather, said a study Tuesday that compared the archaeological record of Man's evolution with that of climate change. Anatomically modern humans, Homo sapiens, first made their appearance in Africa during the Middle Stone Age which lasted from about 280,000 to 30,000 years ago. Some of the earliest examples of human culture and technology are found in South Africa -- with fossil evidence of innovative spurts...