10 questions science can't answer (yet) : a guide to the scientific wilderness

Science is littered with gaping holes, the elephants in the room of human understanding that simply won't go away.

The questions that form the basis of this book are often ignored, because they are too hard, embarrassing, costly or controversial to answer.

They include Where did language come from? How did life begin? Why are there 2 sexes? They are the questions that, when asked properly, will thoroughly embarrass an egghead.