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Gr 4-7 The author's conversational and often-humorous voice slides readers effortlessly through a great deal of fascinating scientific information in this title on animal evolution. After a brief but clear introduction to geologic time and Linnaean taxonomy, six chapters compare ancient and modern dragonflies, crocodilians, camelids, sloths, glyptodonts (armadillos), and beavers. Eamer presents what we know about how older forms became extinct and modern forms evolved, an...Log In or Sign Up to Read More