Beverly Joubert

The worldwide lion population has declined a staggering 90 percent in the past 50 years. In their documentary The Last Lions, conservationists Beverly and Dereck Joubert track the giant hunters across Botswana and warn that without intervention, lions may soon go extinct.

Beverly and Dereck Joubert are wildlife documentary producers. This husband and wife team lived in northern Botswana and captured on film the family relationships of the last free-roaming elephants left in Africa. Their 1994 film "Reflections on Elephants," contained ground-breaking footage of lions attacking an elephant calf. Previously, such attacks were thought to be only mythical. Their book "Hunting With the Moon: The Lions of Savuti" was published last year by Random House.

This husband and wife team lives in northern Botswana, seven hours from the nearest village. Working and living out of a four-wheel drive vehicle, they have captured the family relationships of the last free-roaming elephants left in Africa. Their wildlife film, "Reflections on Elephants," contains ground-breaking footage of lions attacking an elephant calf. Previously, such attacks were thought to be only mythical. The Jouberts have just won a Peabody award for the film. (Rebroadcast)