'I Wonder Why Snakes Shed Their Skin' and other questions about reptiles, from Kingfisher books. Rrp £5.99 so get it for LESS than half price here! Colourful, surprising and full of information, the I Wonder Why books have set thousands of young minds buzzing. I Wonder Why Snakes Shed Their Skin is the perfect introduction to reptiles, featuring snorkelling turtles, crocodiles, snakes in disguise and more. Glossy paperback. Approx 28cm x 23cm.