Do you know why humans snore? Or how a cat sees in the dark? Have you ever heard of a flower that blooms only at night? The answers to these nighttime mysteries and more are revealed in this entertaining non-fiction introduction to the science of night. There's a whole world of activity going on in the world in the dark, and even inside us, when our bodies and brains seem to be quiet and still. In the Dark investigates the big questions about what happens at night, from why we dream to why night exists at all. With each chapter tackling a different topic, young readers will uncover everything there is to know about human sleep, nocturnal creatures, all kinds of plants and the objects in the night sky. Along the way, they'll learn fascinating facts about snoring, animal adaptations, lunar eclipses and tons more -- even plants that do math overnight! With excellent STEM curriculum links in Earth, Life and Physical Sciences, In the Dark is sure to foster a love of science in young readers. Author Lisa Deresti Betik's comprehensive text is kid-friendly and engaging, and illustrator Josh Holinaty's stylish art brings plenty of humour. Backmatter includes a glossary, index and sources for further reading.