character: Octopus Ollie
topic: Warning Signals in Ocean Life
grade: 4
subject: Science
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character: Coral Carl
topic: The Importance of Coral Reefs
grade: 4
subject: Science
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character: Sharky Sam
topic: Shark Behavior and Communication
grade: 4
subject: Science
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character: Dolphin Daisy
topic: Sounds and Signals in Dolphin Communication
grade: 4
subject: Science
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