Book excerpt: A whole day is plenty of time to finish your homework or go to the park, but did you ever imagine that in a single day you take around 8,000 steps; 100,000 of your taste buds are replaced; a bat eats up to 1,000 insects; 27,000 trees are cut down just to make toilet paper in the United States; and a mayfly lives its entire life? Here are presented almost 200 incredible facts like these.