The International Herald Tribune have a wonderful article up on why we laugh. Through a study conducted by neuroscientists Robert Provine and Jaak Panksepp, they produced some rather interesting evidence to suggest that we laugh not because something is funny, but because “It is a way to make friends and also make clear who belongs where in the status hierarchy.”
“Primal laughter evolved as a signaling device to highlight readiness for friendly interaction,” Panksepp says. “Sophisticated social animals such as mammals need an emotionally positive mechanism to help create social brains and to weave organisms effectively into the social fabric.”