Ochre is the oldest known pigment. It is approximately 300,000 years old—appearing in cave paintings—and is still used today. Ochre is an iron oxide, which is basically clay earth. The color can be light yellow, green, and even purple. But most often, it’s red. Since it is found on every continent, it has been used to make art almost everywhere in history.
In Australia, people were using ochre more than 40,000 years ago, and artists there still use it today. Ochre is made of earth, and it is often used to represent Earth and its inhabitants. An artist from an Aboriginal community in Australia’s Northern Territory created the painting below in 1972. What animals can you identify, represented in ochres on bark?