Which endangered animal species was NOT used as the primary mascot for a major international wildlife conservation organization?

Many wildlife and conservation organizations use animal mascots to represent their brand and mission. These mascots often become iconic symbols that help raise awareness for endangered species and environmental causes. How well do you know the famous animal mascots that have become the face of major wildlife conservation efforts? Test your knowledge of these important brand representatives that have helped shape public perception and support for animal protection worldwide.

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Giant Panda (World Wildlife Fund)
Polar Bear (Coca-Cola's Arctic Home campaign with WWF)
Amur Leopard (Wildlife Conservation Society)
Gorilla (The Dian Fossey Gorilla Fund)