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1. How chimp DNA techniques turned us into jungle detectives

   Wild chimpanzees are hard to find, but their DNA – left-behind genetic traces – is opening up a new way of studying them, write experts Alexander Piel and Fiona Stewart

2. Human ancestors had the same dental problems as us – even without fizzy drinks and sweets

   Prehistoric humans and their predecessors may have had a very different diet but their teeth suffered in similar ways to ours, writes anthropology lecturer Dr Ian Towle

3. Decorated snail shell in a cave in Iraq could be evidence of Paleolithic bling

   A tiny artefact with complex incisions tells us about prehistoric ornamentation, writes Professor Chris Hunt

4. Gang culture appeals to disenfranchised young people – but ‘social mixing’ offers a way out

   Over the past ten years, violence among young people involved in gangs has claimed hundreds of lives and dominated national debate in the UK.