An ancient handprint in a cave on an Indonesian island may be the oldest known rock art, created at least 67,800 years ago.

Handprints on cave walls in a largely unexplored area of Indonesia may be the oldest rock art studied so far, dating back to at least 67,800 years ago.

"The oldest hand stencil described here is distinctive because it belongs to a style found only in Sulawesi. The tips of the fingers were carefully reshaped to make them appear pointed," said Maxime A...