Provides a description of the allosaurus, a dinosaur species that lived from about 156 million to 144 million years ago, discusses the history of allosaurus discovery and study, explains what scientists have learned from a complete allosaurus skeleton found in 1991, and speculates about the extinction of the dinosaur.
Chronicles the life cycles of insects, detailing their development from newborns into adults. Details insects' physical characteristics and examines where they live. Includes color photographs, a glossary, and further reading sources.
Presents an overview of the muscular system, including what it is, how it works, and the different body parts that compose it. Includes a glossary and a list of additional resources.
"Introduces facts about hornbills, including physical features, habitat, life cycle, food, and threats to these rainforest creatures. Photos, captions, and keywords supplement the narrative of this informational text."--.
"This Level 3 guided reader introduces basic facts about rays, including their physical characteristics, diet, and habitat. Simple callouts ask the student to think in new ways, supporting inquiry-based reading. Additional text features and search tools, including a glossary and an index, help students locate information and learn new words."--.