由于猜测符号只是初步向人们了透露史前文化，梵佩金·格尔和诺维尔的下一步行动就是跟进它们出现的地点和时间。
Suspecting that this was just the beginning of what the symbols could tell us about prehistoric culture, von Petzinger and Nowell's next move was to track where and when they emerged.
“也许更早期的符号刻在象木头和皮肤等一些易毁坏的物体上，那些东西现在已经无法成形了。”梵佩金·格尔说道。
"Perhaps the earlier symbols tended to be carved into perishable things such as wood and skins, which have now disintegrated," says von Petzinger.
17/21慢车道上大象慢悠悠地踱着步，印度苦行僧前往布什格尔（Pushkar）的梵天寺朝圣，历时3个月。
17#The slow lane moves at an elephant's pace when wandering sadhus, or holy men, make their three-month pilgrimage to the Brahma temple in Pushkar.
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