$15.95
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By Frank Sherwin. Explore the ocean with this informative and enjoyable-to-... more
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$3.95
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The 10 chapters in this handy study guide/workbook cover each main idea in ... more
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$8.95 $7.95
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Save 10% now on this video! Have you ever heard fish that croak? Or shrimp ... more
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$18.50
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Embark on a biological adventure with this deluxe "triassic" Triops kit! T... more
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$10.95
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Hatch these fascinating triops, or "dinosaur shrimp," and watch them swim, ... more
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$4.95
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Every page of this little book is packed with colorful pictures and factual... more
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$16.50
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This kit allows you to reliably test water quality in ponds, aquariums, or ... more
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