- The Ice Age is an enduring topic of interest for this age group that continues to expand and evolve as more discoveries are made.

- This book examines land formation, human civilizations, animal species, and plant species.

- Encourages readers to find connections between modern technological tools and the discoveries of ancient evidence.

- Uses a topic of high interest to unify cross-curricular studies including arts, anatomy, mapping, earth science, physics, geography, biology, botany, cultural studies, archaeology and paleontology.

- Explores the science and ethics of cloning previously extinct species.

- Readers in this age group will be familiar with the Ice Age movie franchise and will enjoy learning what the movies get factually right and where the movie makers are wrong.

- Uses an inquiry-based, open-ended investigative approach to encourage readers to reach their own conclusions and explore individual creativity.

- Uses links to online primary sources to engage readers in further, independent study.

- Meets the Common Core state standards in language arts for reading informational text.

- Guided Reading Levels and Lexile measurements indicate grade level and text complexity.