Madagascar's 'lemur lady' on saving endangered animals

Berenti, Southern Madagascar (CNN) -- Thirty years ago, a young Hanta Rasamimanana was dispatched by the Madagascan government to spy on a delegation of American scientists in the country's Berenti reserve.
The scientist was fresh out of her university course studying animal husbandry in the Soviet Union and working at the national zoo in Madagascar when she was sent to join the group.