Fish Walks, Climbs Waterfalls Like a Salamander (discovery.com)

An anonymous reader links us to an article on Discovery News: A species of cavefish in Thailand has been documented walking and climbing waterfalls in a manner similar to four-footed creatures such as salamanders, in a find researchers call "huge" in evolutionary terms. In a press release Brooke E. Flammang, an assistant professor of biological sciences at NJIT, said that the fish has anatomical features previously known only in tetrapods -- four-limbed vertebrates that include amphibians and reptiles. "What these fish do, in complete darkness, is stick to the rock and climb waterfalls, completely underwater."