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Ocean iron recycling illustration

Iron is a scarce, essential nutrient in the ocean. One bacterium appears to halve its iron needs by recycling. It breaks down certain iron-containing enzymes used by day for photosynthesis,…

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La Nina

La Niña (Illustration by Jack Cook and Fritz Heide, © Woods Hole Oceanographic Institution)

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Lavas forming at volcanic arcs

A new study changes our understanding of how lavas are formed at volcanic arcs, and may have implications for the study of earthquakes and the risks posed by volcanic eruption.…

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Life cycle of a scallop

Suspended in the water, floating in unseen hordes, shellfish larvae are transported by wind and tidal currents until they settle and grow into adults. But this critical stage in the…

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Mercury cycle illustration

Mercury cycles from Earth’s crust to the air to the ocean and back to land. In the ocean, top predator fish such as tuna and swordfish contain high levels of…

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