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1. 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

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. 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