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The Case of the Vanishing Golden Frogs: A Scientific Mystery
From the Series Sandra Markle's Science Discoveries
Panamanian golden frogs aren't just cute, little, and yellow. They're also the national symbol of Panama. But they started to disappear about fifteen years ago. What's killing them? Could it… Read More →
The Snowflake: A Water Cycle Story
With a double-page spread for each month, this book describes the journey of a single drop of water throughout the year. Read More →