Very little” is known about the cave systems where the new species was found or the other creatures living there, researchers ...

In a cave in China (not pictured), a small pool of water ... according to the study. Despite living in a completely dark environment, the fish have “large” eyes that take up about a quarter ...

In a dark, damp cave in southeastern China, a creature with three jaws and ... The jiangxiensis land leech is believed to have no pigment due to living in total darkness, researchers said.