Pollinator Pals (5 titles)
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Powerful Predators (4 titles)
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¡Practiquemos deportes! (Let's Play Sports!) (8 titles)
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¡Qué desastre! (It's a Disaster!) (1 title⁎)
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¿Qué pasa con eso? (Where Does It Go?) (4 titles)
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¿Qué pasa en el invierno? (What Happens in Winter?)
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¿Qué pasa en la primavera? (What Happens in Spring?)
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Raptor World (6 titles)
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Ready, Set, Game! (6 titles)
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Record-Breaking Animals (6 titles)
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New! Fall 2024 |
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Regions of the United States (5 titles)
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New! Spring 2025 |
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Regions of the United States (6 titles)
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Reptile World (17 titles)
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Rescued! Animal Escapes (6 titles)
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Rescuing Animals from Disasters
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Responsible Citizenship (6 titles)
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River Adventures (6 titles)
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New! Fall 2024 |
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River Monsters (6 titles)
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Robot World (4 titles)
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Rockin' Earth! (6 titles)
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New! Fall 2024 |
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Rock-ology: The Hard Facts About Rocks
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Rocks and Minerals (6 titles)
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Saddle Up! (10 titles)
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Safe by Design
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