In one of my recent posts, The Primal Game, I suggested that the human love of ballgames is related to our evolved skill as small game hunters. This article from New Scientist proposes that the ability to hunt small game allowed Homo sapiens to outcompete our evolutionary cousins, the Neanderthal.
Fa and his colleagues counted up the skeletons of animals found in three excavation sites in Spain and southern France. Up until 30,000 years ago, the remains of large animals such as deer were abundant in caves. But around that time, coinciding with the disappearance of Neanderthals, rabbit remains became more prevalent. The authors postulate that humans were more successful at switching to catching and eating rabbits.
– New Scientist