News
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EarthRocks in Earth’s mantle could hold five oceans
Analysis of minerals created in the laboratory under conditions that simulate those deep within the planet suggests that the zone of rocks just outside Earth's core could hold enough water to fill the oceans five times.
By Sid Perkins -
EarthZooplankton diet of mercury varies
By modeling a lake ecosystem in large tubs of water, researchers have found that zooplankton—an important link in the food chain—consume much less toxic methylmercury when the lake experiences an algal bloom.
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AnimalsCold Hamsters: Wild species boosts immunity for winter
Hamsters that have to survive winter outdoors in Siberia rev up their immune systems, including their response to psychological stress, when days grow short.