NPR

Swarms Of Tiny Sea Creatures Are Powerful Enough To Mix Oceans, Study Finds

Each night, the organisms gather in a "vertical stampede" to feed at the ocean's surface. Research suggests the columns of swimming animals can create large downward jets that help churn the waters.
Eddies behind an A. salina shrimp swimming

Each night, all over the ocean, swarms of animals wriggle and kick their way from deep below the waves to feed at the surface. Each creature is tiny — less than a centimeter long, and sometimes much smaller — and there are trillions of them.

New research suggests this nightly migration might be helping mix the ocean on a grand scale, sending columns of water down as the animals swim up. It's a radical idea, and one that is just starting to

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