The catfish that can climb

Scientists in Ecuador have caught a catfish on film doing something they never thought it could – climb cave walls

Research teams studying cave fish have discovered tiny catfish as high as three metres (10 feet) on the cave walls around them. This is a newly recorded behaviour for this species of armoured catfish. They feed on algae with their sucker-like mouthparts, which is what allows them to clamber in the vertical cave wall.


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