Karana is the main character in the novel "Island of the Blue Dolphins" by Scott O'Dell. She is a young Native American girl who lives on San Nicolas Island off the coast of California. After her tribe leaves the island, Karana is left alone to survive in the wilderness. Throughout the story, Karana demonstrates resilience and resourcefulness as she learns to hunt, gather food, and protect herself from dangers. Her journey reflects themes of isolation, survival, and the connection to nature, showcasing her strength and determination in the face of adversity.