Now, John Fa of the Durrell Wildlife Conservation Trust in Trinity, Jersey, says Neanderthals eventually bit the dust because they were unable to adapt their hunting to small animals like rabbits. 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. It's not...