One night, when Bat wakes up at his usual time, he discovers a two-toed sloth hanging next to him—on his branch! Can Bat and Sloth be friends? Sloth thinks so. Bat's not so sure.

The hilarious adventures of two unlikely rainforest friends.

Presents an introduction to bats, discussing their physical characteristics, feeding behaviors, nocturnal habits, migration, their role in helping ecosystems, and their place in popular culture, along with instructions for building a bat house.

The Caldecott Honor winner and New York Times bestselling author of Bats at the Beach “pays homage to the pleasures to be found within libraries and books” (School Library Journal). Another inky evening’s here—the air is cool and calm and clear. Can it be true? Oh, can it be? Yes!—Bat Night at the library! Join the free-for-all fun at the public library with these book-loving bats! Shape shadows on walls, frolic in the water fountain, and roam the book-filled halls until it’s time for everyone, young and old, to settle down into the enchantment of story time. Brian Lies’s joyful critters and their nocturnal celebration cast library visits in a new light. Even the youngest of readers will want to join the batty book-fest! “As with its predecessor, this book’s richly detailed chiaroscuro paintings find considerable humor at the intersection where bat and human behavior meet. But the author/artist outdoes himself: the library-after-dark setting works a magic all its own, taking Lies and his audience to a an intensely personal place.”—Publishers Weekly (starred review) “The rhymed narrative serves primarily as the vehicle for the appealing acrylic illustrations that teem with bats so charming they will even win over chiroptophobes.”—Booklist “There is enough merriness here to keep the story bubbling . . . Pictures light-handedly capture the Cheshire Bat, Winnie the Bat and Little Red Riding Bat.”—Kirkus Reviews

Discover how Bat and Sloth become friends, join in the fun as they throw a party, and follow the clues as they solve a mystery with this four book set. The set includes all four paperback books in the Bat and Sloth series: Bat and Sloth Hang Around; Bat and Sloth Lost and Found; Bat and Sloth Throw a Party; Bat and Sloth Solve a Mystery.

Read Along or Enhanced eBook: Young children are naturally curious about animals. Bats Sleep Upside Down offers answers to their most compelling questions about why bats hang upside-down at night. Age-appropriate explanations and appealing photos encourage readers to continue their quest for knowledge. Additional text features and search tools, including a glossary and an index, help students locate information and learn new words.