Does Anything Eat Wasps?

Does Anything Eat Wasps? Synopsis

Every year, readers send in thousands of questions to 'New Scientist', the world's best-selling science weekly, in the hope that the answers to them will be given in the 'Last Word' column - regularly voted the most popular section of the magazine. This publication is a collection of the best that have appeared, including: Why can't we eat green potatoes? Why do airliners suddenly plummet?

Does a compass work in space? Why do all the local dogs howl at emergency sirens? How can a tree grow out of a chimney stack?

Why do bruises go through a range of colours? Why is the sea blue inside caves? Many seemingly simple questions are actually very complex to answer.

And some that seem difficult have a very simple explanation.