(Onur Güntürkün) This picture shows a person whistling in the Turkish style. Nestled deep in the mountains of north-east Turkey, harmonious echoes fill the air as a group of people whistle to each other across deep valleys and long distances ... Yahoo! Singapore, 1 month ago
People in Turkey are whistling to communicate with friends who are 3 miles away, and it's changing how scientists understand our brains - BusinessInsider.sg, 1 month ago
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