1. | € 59,40 | EAN-13: 9780801898532 Shumaker Robert W | Walkup Kristina R | Beck Benjamin B | Burghardt Gordon M Animal Tool Behavior â The Use and Manufacture of Tools by Animals â Revised Edition 2e
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2. | € 42,30 | EAN-13: 9780262524698 Burghardt Gordon M The Genesis of Animal Play â Testing the Limits
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3. | € 52,30 | EAN-13: 9780262025430 Burghardt Gordon M The Genesis of Animal Play â Testing the Limits
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