A riveting scientific journey exploring the enigma of the Neanderthal and the species' unique form of intelligence. What do we really know about our cousins, the Neanderthals? For over a century we saw Neanderthals as inferior to Homo Sapiens. More recently, the pendulum swung the other way and they are generally seen as our relatives: not quite human, but similar enough, and still not equal. Now, thanks to an ongoing revolution...