Which groundbreaking wildlife retail marketing campaign first introduced the 'adoption' model for endangered animals that has since been replicated by conservation organizations worldwide?

In the world of wildlife conservation retail, marketing campaigns have played a crucial role in raising awareness and driving funding for endangered species protection. Some campaigns have become legendary for their impact on public perception and conservation efforts. Test your knowledge about one of the most influential wildlife marketing campaigns that revolutionized how we connect with animal conservation causes!

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WWF's 'Adopt an Animal' campaign (1973)
National Geographic's 'Photo Ark' initiative (1996)
The Nature Conservancy's 'Save Our Species' program (1985)
Smithsonian's 'Wildlife Guardian' project (1981)