ナショナルジオグラフィックさんのインスタグラム写真 - (ナショナルジオグラフィックInstagram)「Photo by Prasenjeet Yadav @prasen.yadav In Meghalaya, India, a mountain tribe called Khasi has been practicing the concept of bioengineering for centuries. "Our ancestors started building these living root bridges so we can traverse the turbulent rivers during the monsoon," said Bahdrong, a villager living in these remote mountains of the country's northeast. Inhabiting one of the wettest places on the planet, these tribes have ingeniously developed a way to use rubber plants (Ficus elastica) to make the bridges. They can survive for hundreds of years and get stronger with age. There are an estimated hundred such bridges spread across the hills of Meghalaya, but most are isolated and very little is known about them. Follow me @prasen.yadav for more photos from the biodiverse states of India and parts of Central Asia.」8月15日 23時38分