Describes the physical features of a coral reef, its community of plants and animals, and environmental threats.

"Learn how animals can be trained to detect diseases in humans."--

Describes the characteristics of mountainous areas and the plants and animals that inhabit them.

"Young children are naturally curious about animals. Dolphins Breathe Air offers answers to their most compelling questions about how these mammals can swim. Age-appropriate explanations and appealing photos encourage readers to continue their quest for knowledge. Additional text features and search tools, including a glossary and an index, help students locate information and learn new words."--

"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."--

Presents general information about paleontologists, what they learn about prehistoric animals and vegetation by studying them.