A startling discovery of 70,000-year-old artifacts and a python's head carved of stone appears to represent the first known human rituals.
Scientists had thought human intelligence had not evolved the capacity to perform group rituals until perhaps 40,000 years ago. But inside a cave in remote hills in Kalahari Desert of Botswana, archaeologists found the stone snake that was carved long ago. It is as tall as a man and 20 feet (6 meters) long.
"You could see the mouth and eyes of the snake. It looked like a real python," said Sheila Coulson of the Universityof Oslo. "The play of sunlight over the indentations gave them the appearance of snake skin. At night, the firelight gave one the feeling that the snake was actually moving."
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