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mass extinction
Our Planets Protectors
Why Did The Ecosystem Collapse? (Assessment)
A Rock Record Mystery: What Happened Here? (Assessment)
What Happened To The Dinosaurs?
The Rock Files (Spark)
Cold Case Controversies: The End Of The Cretaceous Period (Anchor)
How Do Rocks Tell The Story Of Our Past?
How Do Earth’s Materials Change?
How Hard Does An Asteroid Hit?
What Can Trigger An Ecosystem Collapse?
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