Do Polar Bears Get Lonely

Book excerpt: Do Polar Bears Get Lonely? is the third compilation of readers' answers to the questions in the 'Last Word' column of New Scientist, the world's best-selling science weekly. Following the phenomenal success of Does Anything Eat Wasps? (2005) and the even more spectacularly successful Why Don't Penguins' Feet Freeze? (2006), Do Polar Bears Get Lonely? includes a bumper crop of wise and wonderful questions and answers such as: Why does garlic make your breath smell? How toothpaste makers get the stripes in toothpaste? Why do we get 'pins and needles'? Why are some people left-handed and other people right-handed? Can insects get fat? Do elephants sneeze? And do fish get thirsty? What causes cells to stick together in the human body rather than simply fall apart? And why are pears pear-shaped (and not apple-shaped)? This eagerly awaited selection of the best once again presents popular science at its most entertaining and enlightening.