In a massive Chinese sinkhole, scientists find a secret forest

At the bottom of a sinkhole, ancient trees stretch nearly 130 feet high. Dense plants cover the ground, and a rare type of bamboo grows.

Cave explorers discovered the hidden forest this month when they descended into a previously unexplored massive sinkhole in south China’s Guangxi region. Researchers say the hole, which is roughly 630 feet deep and spans more than 176 million cubic feet, could be home to previously unidentified plant and animal species.