A 2022 field study combining morphology and mitochondrial DNA analysis verified four cave-catfish populations in Chiapas, ...

It is not clear why Parakneria thysi climbs. Fish are known for their swimming skills. It seems absurd to think of fish functioning outside their aquatic environment, given how they effortlessly glide ...

Learn how fish in the Democratic Republic of the Congo scale a near-vertical waterfall using microscopic hooks. A waterfall isn’t supposed to be climbable. But thousands of small fish are doing it ...

Scientists discovered a tiny fish that can climb up a 50-foot waterfall in the Democratic Republic of Congo, a rare feat for a small fish. And now a surprising kind of rock climber that uses its fins ...