Major discovery helps explain coral bleaching

Corals, like all animals, must eat to live. The problem is that most corals grow in tropical waters that are poor in nutrients, sort of like ocean deserts; it's this lack of nutrients that makes the water around coral reefs ...

A closer look at how immune cells attack and heal

Macrophages—immune cells that both fight infections and fix the damage they cause—are often placed into two categories: those that increase inflammation (known as "M1") to attack, and those that decrease inflammation ...

New metamaterial offers reprogrammable properties

Over the past 20 years, scientists have been developing metamaterials, or materials that don't occur naturally and whose mechanical properties result from their designed structure rather than their chemical composition. They ...

Possible explanation for more efficient maize growth

Maize has a significantly higher productivity rate compared with many other crops. The particular leaf anatomy and special form of photosynthesis (referred to as C4) developed during its evolution allow maize to grow considerably ...

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