Ages 4-8. Zoologist Davies, author of Big Blue Whale (1997), offers an enticing picture book about animals that blends story with fact. Lyrical text in large print that's suitable for beginning readers follows a mother bat through a typical evening, as she wakes and sweeps out into the inky night, hunts insects, and returns to feed her young at daybreak. Bat facts are printed in smaller typeface, teaching readers about bats'body features, eating habits, echolocation, etc. Lovely, atmospheric watercolor-and-pencil illustrations show surprising detail and succeed in making an oft-maligned animal appear realistically fuzzy and appealing. A small index concludes this attractive, well-written introduction to a bat's world.