1Narwhals are the unicorns of the sea! These mysterious creatures may be known for their long tusks. But they have many other adaptations to survive in the Arctic! In this low-level text, readers will explore the physical and behavioral traits that help narwhals thrive in the icy waters of the Arctic biome. Engaging text, vivid photos, and special features such as an adaptations graphic, a profile, and a diet feature highlight all that makes narwhals Arctic survivors!