Believe it or not there are some fish that appear to be able to walk, with several species of fish having been documented ‘walking’ along the seabed in a variety of different styles.
Which fish can 'walk'?
Aided by buoyancy, bottom-dwelling frogfish (one of the world's weirdest fish) use their pectoral fins to shuffle after prey, while epaulette sharks also use their pelvic fins to haul themselves between rockpools.
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In fresh water, lungfish walk on long, fleshy fins, but on land this turns into more of a belly crawl. Mudskippers also venture onto land. Their pectoral fins have a joint-like bend that, with their tails, allows them to spring across muddy estuaries. These all follow a rather loose definition of walking, but deep in the Thai rainforest, cave angel fish do things differently.
They are one of the very few fish to have a bone connection between their pelvic fins and spine which, combined with strong muscles, allows them to walk through caves and even up waterfalls in a fashion similar to a newt.
