The speaker discusses a powerful image: a cave painting in Spain, initially thought to be non-religious art. New dating techniques revealed that parts of this artwork are over 60,000 years old, created by Neanderthals who lived in Spain before humans arrived. What makes this image particularly significant is the evidence suggesting it is a collaboration between Neanderthals and later modern humans, an artistic exchange between two distinct human species. This image serves as a tangible reminder of a time when multiple human species shared the Earth and potentially interacted, prompting reflection on our shared deep history and connection.