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Giant rats trained to detect land mines and tuberculosis in Africa

13 September 2012 Last updated at 16:37 BST

Giant African pouched rats are being used in Africa to locate landmines and help diagnose tuberculosis because of their acute sense of smell.

Some of the animals - which are trained by Apopo, a nonprofit social venture - have been used to search for explosives in Mozambique, a country littered with landmines after decades of civil war.

Others are helping doctors to spot tuberculosis in patients when conventional methods of diagnosis do not work.

Hassan Mhelela reports.