Which celebrity's endorsement of WWF's giant panda conservation efforts in 2011 led to a record 40% increase in donations and is credited with helping remove the species from the endangered list by 2016?

Conservation organizations often use celebrity endorsements to raise awareness for endangered species and wildlife protection efforts. These strategic partnerships can significantly boost fundraising and public engagement for animal protection causes. Test your knowledge about one of the most successful wildlife conservation endorsement campaigns that changed the trajectory of an endangered species' recovery efforts.

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Jackie Chan
Leonardo DiCaprio
Emma Watson
David Attenborough