Which wildlife conservation organization pioneered the symbolic 'adoption' marketing model in 1973, allowing supporters to symbolically adopt endangered animals with plush toys and certificates?

Conservation organizations have developed innovative marketing strategies to raise awareness about endangered species and environmental protection. Some campaigns have become iconic in their effectiveness, changing public perception and driving action. This poll tests your knowledge about one of the most successful wildlife conservation advertising campaigns that revolutionized how we connect with conservation causes.

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World Wildlife Fund (WWF)
The Nature Conservancy
Greenpeace
Conservation International