During the day, most bats sleep hanging from caves or trees. At night, bats come alive, navigating with their ears, hunting bugs, and flying through the dark. Beginning readers hone their phonics skills while learning all about bats and their nighttime routines. As readers practice decoding words with the long vowel patterns y and igh, they gain science knowledge. Every Stairway Decodables nonfiction book combines multiple aspects of the Science of Reading to support small group instruction, independent reading, and reading practice at home.