Although researchers have long believed in a correlation between the ingestion of mind-altering substances and trippy rock art ... that of the pinwheel drawing. Although scientists knew that ...

Thousands of ochre rock drawings, including images of humans and animals morphing into one another, offer a striking glimpse at early life in the Amazon. When you purchase through links on our ...

A red, crosshatched design adorning a rock from a South African cave may take the prize as the oldest known drawing. Ancient humans sketched the line pattern around 73,000 years ago by running a ...