Catfish (ナマズ Namazu?) are a diverse group of ray-finned fish that are named for their prominent facial barbels, which resemble a cat's whiskers.
The Walking Catfish (ウォーキングキャットフィッシュ Wōkingu Kyattofisshu?) is a species of freshwater, airbreathing, catfish that is native to Southeast Asia, but introduced into other waters for commercial reasons.
Considered an invasive species outside of Southeast Asia, the species is named for its ability to "walk" across dry land to find food or new environments to propagate.
This fish normally lives in slow-moving and often stagnant waters in ponds, swamps, streams and rivers, flooded rice paddies or temporary pools which may dry up. When this happens, its "walking" skill allows the fish to move to other sources of water.
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- While it does not truly walk as most bipeds or quadrupeds do, the Walking Catfish has the ability to use its pectoral fins to keep it upright as it makes a sort of wiggling motion with snakelike movements. The Walking Catfish can survive using this form of locomotion as long as it stays moist.
- Many catfish are of considerable commercial importance, and many of the larger species are farmed or fished for food. As such, various species were introduced into the waters of other countries in a bid to increase commercial fishing; however, the introduced species began eating the native species and fauna, causing an environmental issue.