Which conservation organization launched the famous advertising slogan "For a living planet"?

Test your knowledge about famous advertising slogans that have helped raise awareness and funds for wildlife conservation efforts worldwide. These campaigns have played crucial roles in protecting endangered species and their habitats. Some have become iconic in the environmental movement, while others have driven significant policy changes and public engagement. How well do you know the organizations behind these powerful messages?

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World Wildlife Fund (WWF)
The Nature Conservancy
Wildlife Conservation Society
International Union for Conservation of Nature (IUCN)