In 1993 a dog - breeding program was set up that has met with a high rate of success; more than 50 percent of the dogs have qualified for service as drug detectors with the Australian Customs Service.
भविष्य में आपकी नौकरी चली जाने की चिंता आपकी सेहत को खराब कर सकती है, साइन्स न्यूज़ रिपोर्ट करती है ।