One of the 14 African giant pouched rats brought from Africa to detect one of the world’s most heavily mined countries through their incredible sense of smell, works in Trach, Cambodia. Tiny noses and long whiskers twitching, they've scurried and sniffed their way across 775 square meters (8,300 square feet) of fields to eliminate a scourge that has killed thousands of Cambodians: land mines. NPR story here. (AP Photo/Denis Gray)