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John Valk: Gorilla
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John Valk: Asian lion
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John Valk: Kuifmakaken
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John Valk: Breeding Storks
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John Valk: Red Ibis
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John Valk: Rode Ibis
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John Valk: Eagle
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John Valk: Maleise tapir
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John Valk: Blijdorp
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John Valk: Blijdorp Zoo
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John Valk: Blijdorp
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John Valk: Kwak , Black Crowned Night heron
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John Valk: Rafflesia
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John Valk: Blijdorp
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John Valk: Neushoornleguaan
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John Valk: Grasshoppers, sprinkhanen
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John Valk: Ringstaart Makaak
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John Valk: Kuifhert , Tufted deer
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John Valk: Hamerkop, Hammer Head preparing a nest
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John Valk: Leeuwenstaartmakaak
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John Valk: Leeuwenstaartmakaak
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John Valk: Leeuwenstaartmakaken
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John Valk: Viskat
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John Valk: Walking Leave
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John Valk: Kroeskoppelikaan, Pelican
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John Valk: Humans
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John Valk: Gelada
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John Valk: Gorilla
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John Valk: Gorilla
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John Valk: Gorilla