82,000 year old perforated Nassarius mollusc shells, some dyed with red ochre, have been discovered in caves in Morocco. This really destroys the old (and always unexplainable) idea of the paleolithic revolution (the idea that modern humans who had been around for bout 70,000 years before suddenly starting to behave like us only 30,00 years ago) and allows archaeologists to see homo sapian evolution as a progression over time, just as one would expect of a species.