Then in 1989, two scientists, Mark and Delia Owens, famous for their book ‘Cry of the Kalahari’, were granted permission to set up a research station in the Park. Through their influence and as a means of helping to curb poaching in the area, the authorities allowed entry to a few more safari operators, with strict limits on numbers, into the Park for guided walking safaris and game drives. Their efforts in the North Luangwa are documented in their book ‘Survivors Song / The Eye of the Elephant’.