The oldest paintings are found to be 10,000 years old, but some of the geometric figures date to as recently as the medieval period. The colours used are vegetable colours which have endured through time because the drawings were generally made deep inside a niche or on inner walls. The drawings and paintings can be classified under seven different periods. Period I – (Upper Paleolithic): These are linear representations in green of humans dancing and hunting. Period II – (Mesolithic): Comparatively small in size the stylised figures in this group show linear decorations on the body. In addition to animals there are human figures and hunting scenes, giving a clear picture of the weapons they used: barbed spears, pointed sticks, bows and arrows. Some scenes are interpreted as depicting tribal war between three tribes symbolised by their animal totems. The depiction of communal dances, birds, musical instruments, mothers and children, pregnant women, men carrying dead animals, drinking and burials appear in rhythmic movement. Period III – (Chalcolithic) Similar to the paintings of the Mesolithic, these drawings reveal that during this period the cave dwellers of this area were in contact with the agricultural communities of the Malwa plains, exchanging goods with them. Period IV & V – (Early historic): The figures of this group have a schematic and decorative style and are painted mainly in red, white and yellow. The association is of riders, depiction of religious symbols, tunic-like dresses and the existence of scripts of different periods. The religious beliefs are represented by figures of yakshas, tree gods and magical sky chariots. Period VI & VII – (Medieval): These paintings are geometric linear and more schematic, but they show degeneration and crudeness in their artistic style. The colors used by the cave dwellers were prepared by combining black manganese oxides, red hematite and charcoal. One rock, popularly referred to as "Zoo Rock", depicts elephants, barasingha (swamp deer), bison and deer. Paintings on another rock show a peacock, a snake, a deer and the sun. On another rock, two elephants with tusks are painted. Hunting scenes with hunters carrying bows, arrows, swords, and shields also find their place in the community of these pre-historic paintings. In one of the caves, a bison is shown in pursuit of a hunter while his two companions appear to stand helplessly nearby; in another, some horsemen are seen, along with archers. In one painting,