Found in the Silberberg Grotto in 1997, it is estimated to be approximately 3.67 million years old .
StW 573 is a nearly complete Australopithecus skeleton discovered in the of South Africa. Found in the Silberberg Grotto in 1997, it
In legal contexts, "573" often designates specific bills or sections of a code: Bill Text - AB-573 Youth Mental Health Boards. Found in the Silberberg Grotto in 1997, it