So, what's so special about dance and music? The answer is a long evolutionary link of life with music, though why such a link developed in the first place remains unclear. Some hypothesize that music began in the form of small rhythmic beats, like tapping one's foot. Our ancestor soon learned to coordinate with others to create more complex rhythms. One reason, some scientists think, that we began synchronizing with other people is because it allowed us to create social bonds. Several archaeological sites have found musical instruments dating back as far as 4000 to 6,000 years ago. This long history suggests that it is beneficial to have neural connections that help us sync up with our group mates, which might have been an advantage to scare away predators as a group. This might help explain why we break out into our very own air guitar solos while listening to rock. Our brains think we're all pan of the same orchestra. This mental coordination, at some point, resulted in dance. This propensity to dance and make music in groups has led scientists to propose that this might be one reason why humanity has managed to form and remain in large group of societies. Almost every society has a dance that is unique to its culture, and evidence has been found that humans have been dancing since we could first paint on walls.