Alt-week 11.10.12: the contagious smell of fear, finding Bigfoot, and the theory of everything

Alt-week takes a look at the best science and alternative tech stories from the last seven days. There are some questions that have puzzled the human race more or less since the dawn of time. Why are we here? What is the meaning of life? You know the sort of thing. While we might not have the answers to these just yet, thanks to science, we're getting there. In this week's instalment we discover that you can, in fact, smell fear. Meanwhile, one scientist pledges to launch an ambitious hunt for B...