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Dereck Joubert (birth 3 March 1956, Johannesburg) is a South African-born filmmaker, author, conservationist and National Geographic explorer-in-residence based in Botswana. He is also the brother of well known South African artist and conservationist Keith Joubert. He has been filming, researching and exploring Africa for over 35 years with his wife, Beverly Joubert. The couple have made over 40 films for National Geographic, with a strong focus on iconic species like big cats and elephants. Wikipedia