Most fish glide through water—but a few oddballs take the scenic route on land.

Mudskippers, found in mangrove swamps from Africa to Asia, are perhaps the most famous. These googly-eyed fish use their strong pectoral fins to lurch across mudflats, even climbing tree roots and burrowing in the soil. Thanks to their ability to breathe through their skin and mouth lining, they’re perfectly suited for life between tides.

Then there’s the walking catfish, native to Southeast Asia and now crawling through parts of Florida. It slinks across roads, lawns, and parking lots, wriggling its way to new water sources. Its gills can absorb oxygen directly from the air, making its fish-out-of-water act surprisingly effective.

Not to be outdone, the climbing perch can breathe air and survive for days out of water. It’s been seen crawling between rice paddies and roadside ditches in India and Southeast Asia.

These remarkable creatures hint at an ancient story—how early life may have transitioned from sea to land. They’re like evolutionary time capsules with fins, reminding us that nature doesn’t always stay in its lane. Watch how evolution gave this fish a leg up ...literally.