According to this article giant pandas could be extinct within two to three generations. The warning comes from the WWF who say the destruction of the pandas natural habitat is the main threat facing the species. The problem is that the remaining living areas are becoming increasingly fragmented leaving most of the remaining pandas in areas of bamboo less that a mile wide. These areas are often separated by highways which make migration and mating difficult for the pandas. It is thought there are around 1,600 pandas left in six mountain ranges in southwestern China, with only 43% of panda habitats being protected areas.