2/2 As the ice caps retreated 35,000 years ago, the Neanderthal stronghold in Europe weakened.
First broadcast: 30 Jun 2011
1/2 Homo sapiens and Homo erectus meet for the first time following a super-volcanic eruption.
First broadcast: 23 Jun 2011
BBC © 2012 The BBC is not responsible for the content of external sites. Read more.
This page is best viewed in an up-to-date web browser with style sheets (CSS) enabled. While you will be able to view the content of this page in your current browser, you will not be able to get the full visual experience. Please consider upgrading your browser software or enabling style sheets (CSS) if you are able to do so.
