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Well, since it can already push snow downhill (snow rollers or snow donuts) and since waterfalls can turn upwards (@samminator has mentioned this in a post), I wouldn't be surprised if a combination of the mechanisms that work in these phenomena would create something that unique :)

Lol. That would be so weird. But nature itself is pretty weird, so we cannot expect anything less from nature

Yes, you never know what you're gonna get 😜