What Neat Feet!

This clever and crisply designed ``Guess-and-Learn'' concept book invites youngsters to examine the feet of several familiar animals and consider the adaptations each made to its environment. In the first of the two spreads devoted to each animal, Machotka observes that ``this foot looks like a paddle and belongs to a . . . '' and pairs it with a detailed close-up of a black webbed foot. The reader turns the page to reveal a black swan facing a brief discussion of the swan's feet on the verso page: ``This webbed foot is formed by three long toes!'' Machotka repeats this involving game with photos of a seal, rabbit, goat, cat, camel and elephant. Younger children will connect with this as a simple guessing game, while the slightly older reader will appreciate the clear, straightforward information. Ages 5-up. (Mar.)