Cambridge Discovery Education Interactive Readers are the next generation of graded readers - captivating topics, high-impact video, and interactive exercises designed to motivate and engage. Come explore the dark side! Every day, we find ourselves in the dark - exploring the universe, the animal kingdom, and even ourselves. This reader examines how human and animal life depends on darkness. Use the unique code inside the book to access the online reader, complete with videos and interactive exercises. Plus, download a free e-book version of the reader!
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