Feature: Truffle hunting on Greek mountain a new tradition in Greece

Marios Blanas and his companion dog start their truffle hunting in Peloponnese, southwest Greece on Nov. 5, 2017. At an altitude of 1,500 meters, 51-year-old Marios Blanas and his companion dog Lacta, an Italian Griffon, start their routine day hunting "black diamonds", the valuable delicacy of truffles in Menalon Mountain, in Peloponnese, southwest Greece. (Xinhua/Lefteris Partsalis)