This is one of the best documentaries I’ve seen from Netflix. The relationship between climate change (> 1 million years ago) and human evolution evolution was fascinating. It’s an interesting way of doing a documentary – actors play Neanderthals and other homo-[] who go about their lives according to the best guess of scientists analyzing fossil remains.

See this link for the BBC page:
http://www.bbc.co.uk/sn/prehistoric_life/tv_radio/wwcavemen