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Amazon.com: Are We Smart Enough to Know How Smart Animals Are?: 9780393246186: de Waal, Frans: Books
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Amazon.com: Are We Smart Enough to Know How Smart Animals Are?: 9780393246186: de Waal, Frans: Books
Primatoloog Frans de Waal verdiepte zich in gender bij mensapen: 'Als een aap homoseksuele neigingen heeft, stoort dat de rest niet zo'
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