Lifestyles of the rich and famous. That's one way to describe the world of science this week as seen in our science policy blog, ScienceInsider.

At the AAAS meeting, conservation scientists reported that 80% of listed species are conservation reliant and will need to remain on the endangered species list. And the situation is likely to get worse.

The earliest members of the human family known outside Africa managed to trek all the way across Africa and the Middle East with the most primitive kind of stone tools known rather than with more sophisticated stone hand axes that were thought to be essential for intercontinental travel, it was announced at the AAAS meeting.