Australia: Oldest rock art is 17,300-year-old kangaroo
Scientists determined the painting’s age by examining ancient wasp nests around the artwork. …
“We radiocarbon dated three wasp nests underlying the painting and three nests built over it to determine, confidently, that the painting is between 17,500 and 17,100 years old; most likely 17,300 years old,” said Dr Finch, a geochronologist from the University of Melbourne.