Amazon.com description: Product Description: Have you ever wondered why fireflies glow in the dark? Or why spiders don't stick to their own webs? And why do octopuses make ink? Tell Me Why Elephants Have Trunks provides the answers to these tricky questions about animals and much more with the help of light-hearted text and eye-catching artwork to get to the bottom of these scientific problems. Bizarre, confusing or just plain strange things happen in the world around us all the time. Each title in the Tell Me Why series delves into some of the great mysteries of everyday life, and uses the world of science and scientific research to make sense of them. Bright, dynamic artwork supports the text, making the series visually appealing as well as factually fascinating.