An international team of scientists has identified at least 11 species of fish suspected to have land-walking abilities.

The findings are based on CT scans and a new evolutionary map of the hillstream loach family, which includes the only living fish species caught in the act of walking: a rare, blind cavefish known as Cryptotora thamicola, or the cave angel fish. Pinpointing which species of hillstream loaches have walking capabilities can help scientists piece together how the first land-walking vertebrates might have come to be. The research was funded in part by the U.S. National Science Foundation.