Order this book Marine Biology by Ellen Doris. Part of the Children's School of Science series. Almost 200 color photos. 0500190070 Order this book Invertebrate Zoology by Ellen Doris. An introduction to a vast and diverse group of animals, this book focuses on seven families of organisms, all of which can be easily collected or ordered by mail.
Children rear crayfish and spiders, watch flatworms distinguish between light and dark, and more.
Part of the Children's School of Science series. Almost 200 color photos.