Sabre-Tooth Tiger
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Spinosaurus
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Ankylosaurus
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Parasaurolophus
Buy from $37.57
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Pteranodon
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Velociraptor
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Cleopatra's Coin
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Storybook Homes
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Woolly Mammoth
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Sloping Up and Down: The...
Buy from $5.40
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Tylosaurus
Buy from $25.64
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Galileo's Telescope
Buy from $51.15
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Common Cents: The Money in...
Buy from $65.89
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Stone Age Geometry: Lines
Buy from $4.99
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Shakespeare's Quill
Buy from $45.31
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Marco Polo's Silk Purse
Buy from $57.48
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Cowries, Coins, Credit: The...
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Alone in the Arctic
Buy from $13.22
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Tangled in the Rainforest
Buy from $2.45
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Save, Spend, Share: Using...
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Stone Age Geometry: Circles
Buy from $2.98
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Pulling Up: The Pulley
Buy from $13.46
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High-Tech Inventions
Buy from $16.69
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Stone Age Geometry: Squares
Buy from $24.72
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