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1. Footprint fossils suggest lizards have been running on two feet for 110 million years

   Bipedal movement has existed in modern reptiles for much longer than we previously knew, writes Dr Peter Falkingham

2. 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

3. Here’s how your holiday photos could help save endangered species

   Tourism is one of the fastest growing industries in the world – 42m people visited sub-Saharan Africa in 2018 alone. Photographs on social media are already being used to help track the illegal wildlife trade and how often areas of wilderness are visited by tourists.

4. 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

5. How we can use light to fight bacteria

   This research could provide an answer to some of the problems posed by antibiotic resistance

6. How parasites and bacteria could be changing the way you think and feel

   From losing inhibitions to dementia – Lecturer in Genetics Dr Robbie Rae explores the role small critters play in a range of illnesses and behaviours

7. Knife crime and gangs: how a decade of bad policy left deprived young people without real choice

   England’s dramatic rise in gang-related knife crime has been called a “disease” by the UK home secretary, Sajid Javid, and amid the daily drama of Brexit the prime minister, Theresa May, has called a summit of 100 experts to Downing Street to discuss the issue.