Eye-catching studies that didn't make the final cut:
Dogs recognise unfairness.
People are influenced by the dreams they have.
We reveal our socio-economic background in the way we interact with others - participants from more affluent backgrounds showed more signs of disengagement, such as doodling, and fewer signs of engagement, such as head-nodding, than did participants from more modest backgrounds.
Psychopaths get released earlier than other offenders with similar records, perhaps because of their ability to manipulate parole boards.
Eating less could help boost the memory powers of older people.
A sniff and a whiff: 50 years of pheromone research.
Maybe Scrooge had a point: apparently giving money to others is associated with the onset of major depression!