Yolen explores a tropical rain forest in an entrancing poem full of internal rhyme, alliteration, and evocative images. "But it is not all green/ in the hot green house:/ a flash of blue hummingbird,/ a splash of golden toad,/ a lunge of waking lizards,/ a plunge of silver fish . . . ." These are only a few of the many creatures that the author catalogs and Regan depicts in her lush gouache paintings. The illustrations include all of the animals mentioned in the brief text, but readers are left to their own devices to identify the extra treats the artist includes. Ideal for introducing rain forest ecology in the primary grades, this book may be also be used by preschool teachers. Its many animal sounds and closeup views of snakes, sloths, and primates will perfectly suit their inquisitive students. A page of remarks about the continuing destruction of tropical rain forests and an address where youngsters may write to obtain information about preserving them is appended. The next best thing to a guided tour. --Ellen Fader, Westport Public Library, CT grades 3-6 Copyright 1993 Reed Business Information, Inc.