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16 famous animal conservationists

Paul Watson aboard the Steve Irwin

Photo: Simon Ager/Flickr

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Paul Watson

Captain of the famed Sea Shepherd, Paul Watson has worked towards marine life conservation for over 30 years. As a co-founder of the Greenpeace Foundation, Watson sailed in opposition of nuclear testing, seal hunting and whaling. After his departure from Greenpeace, Watson founded the Sea Shepherd Conservation Society and he continues to patrol illegal whaling to this day (you can watch their adventures on the Discovery Channel's "Whale Wars").