"... Where do the Neanderthals fit in? They take us way back beyond fingers tracing beasts on stone walls. While it's impossible to pinpoint the 'first' of their kind, they became a distinct population 450 to 400 thousand years ago (ka). The night sky then hanging over earth's many hominid populations would have been alien, our solar system light years away from its current position in a never-ending galactic waltz. Pause halfway through the Neanderthals' temporal dominion at around 120 ka, and while the land and rivers are mostly recognisable, the world feels different. It's warmer and ice melt-swollen oceans have flooded the land, shoving beaches many metres higher. Startlingly tropical beast roam even the great valleys of Northern Europe. In total, the Neanderthals endured for an astonishing 350,000 years, until we lose sight of them — or, at least their fossils and artifacts — somewhere around 40 ka."