Make a Comment • Email Link • Send Letter to Editor IPFS News Link • Archaeology African Transition 12-29-2012 • arclein continuous human occupation between modern times and at least 200,000 years ago, including during a late Ice Age period when a near extinction-level event, or "genetic bottleneck," likely occurred. Watch Streaming Broadcast Live: LRN.fm Watch live shows and archives TV Live Chat Telegram Share this page with your friends on your favorite social network: