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 @joelsartore I In the early 1900s, the Bornean rhinoceros was common throughout its range, but over the course of a few decades this species experienced severe population declines. The 1930s brought about a huge wave of hunting by locals who killed the rhinos, trading their horns with China for use in traditional medicine. This practice drove the rhino to the brink of extinction, and its struggle to survive continues today. Despite studies that have proven that rhino horn has no medicinal value, the market for rhino horn has persisted, and poachers continue to decimate the species’ population. Data indicates that this species is now extinct in east Malaysia and most of Kalimantan, with the remaining population–less than 20 individuals–calling the region of east Kalimantan home. Photo taken at the Sumatran Rhino Rescue Center in Indonesia. To see more species featured in the Photo Ark, follow me @joelsartore. #PhotoArk #savetogether」9月4日 3時37分