WATCH: Prince William and Harry's African Excursion

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NEW VIDEO: Prince William travels to Botswana with his brother and best man Prince Harry, giving lessons in charity and having fun.
The princes made their first official tour of the African nation for the Tusk Trust organization which focuses on protecting wildlife on the continent.
"My mother instilled in Harry and I from a very young age that being grounded was very important," Prince William said in an interview with Ben Fogle for BBC America. "And for me I've really tried to keep that going and I know Harry has as well."
Prince William is a patron of Tusk Trust, which also promotes education.
"Prince William's Africa" premieres on BBC America this Sunday.