In "The Sea Cow with the Mermaid Tail" by Kelly Johnson, Moana, a unique sea cow with a shimmering mermaid tail, lives in the Atlantic Ocean. Her tail, sparkling with green and blue scales, makes her an exceptional swimmer. Moana loves exploring and making new friends. One day, she meets Charlie, a curious clownfish, and they soon encounter playful dolphins. Together, they enjoy games and adventures, with Moana's tail giving her an edge in their activities. Later, they meet Tessa, a wise old sea turtle who tells Moana her tail is a special gift to be cherished. Grateful for her tail and friends, Moana realizes the joy she brings to others. She continues to explore the ocean, spreading happiness wherever she goes, and lives happily ever after.