did you know that? [Did you know that?] Did you know that… the ocean has underwater rivers and waterfalls?

[TheDude @ LCS]

Did you know that… the ocean has underwater rivers and waterfalls?

Deep beneath the sea, differences in saltiness and temperature create dense water flows that move like rivers, complete with waterfalls—some taller than any on land. One underwater waterfall in the Denmark Strait is over 3.5 km high, making it the tallest on Earth

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