For the first time in 50 years, black rhinos will be roaming across their native plains once more.

Thanks to an international collaboration between South Africa and Chad, 6 critically-endangered black rhinos – two male, four female – were sedated and flown from the South African city of Port Elizabeth to their new home in Chad’s Zakouma National Park.

The reintroduction of the black rhino to the wilds of Chad has been called a “historic” and “unprecedented” conservational victory.

Due to poaching, black rhinos have not been seen in the Chadian wilderness since the 1970s. However, conservational nonprofit African Parks says that Zakouma has become a “safe haven for some of the most important wildlife populations in Central Africa, driving its emergence as one of the continent’s most astonishing conservation success stories.”

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Over the course of the last seven years alone, African Parks has practically eliminated poaching from Zakouma, and two of those…