![290-meter-deep sinkhole in central China's Hubei(1/5)](http://www.ecns.cn/hd/2018/05/18/8d02d1f21219465a9ffdaa7d6bbf37a6.jpg)
Photo taken on May 17, 2018 shows plants inside a sinkhole in Xuan'en County, central China's Hubei Province. Due to the local Karst landscape and humid climate, a sinkhole more than 290 meters deep in Xuan'en has become home for various plants and animals. (Xinhua/Song Wen)