128 pp., List of Projects, Index, Selected Readings list. Scholastic #TX 398. Minor edgewear/bumping, front cover has a faint crease. Black and white photos and drawings throughout.
"Scientists are tracking down new clues to age-old mysteries: How can a moth track an odor seven miles away - without a nose? What triggers migration? Do birds navigate by the stars? . . . and many more bafflers!" Grades 3-6; 7¾" - 9¾" Tall 005572 Price: