Which innovative marketing campaign pioneered the 'adopt an animal' model that is now used by nearly every major wildlife conservation organization worldwide?

Test your knowledge of famous wildlife conservation marketing campaigns that have made a significant impact on animal protection efforts worldwide. These campaigns have not only raised awareness but also transformed how consumers engage with wildlife conservation organizations. See if you can identify the groundbreaking campaign that revolutionized wildlife protection fundraising!

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WWF's Adopt an Animal program (1973)
National Geographic's Photo Ark initiative (2005)
The Nature Conservancy's Last Great Places campaign (1991)
Jane Goodall Institute's ChimpanZoo program (1984)