What did the australopithecus paint?

Australopithecus did not paint; they lived between about 4 million and 2 million years ago, long before the advent of artistic expression. Evidence of painting and symbolic art is associated with later hominins, particularly Homo sapiens, who began creating cave paintings and other forms of art around 40,000 years ago. Australopithecus is primarily known for its bipedal locomotion and use of simple tools, rather than artistic endeavors.