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Revisiting James Lovelock’s theory as it approaches 50.

Contrary to appearances, online reviews reflect the opinions of the few.

Inside the quest to conquer addictive drugs.

How genes influence the animal palate.

Laura Niklason recognized that synthetic organs can't grow without mechanical stress.

A neuroscientist studies ant colonies to understand feedback in the brain.

SATs are on their way out, but new tests aren’t quite ready.

A powerful, precise language aptitude test is entering civilian life.

When science and fear collide, a supernatural story thrives.

A Renaissance alchemist pioneers feedback control.

Life on other planets may rely on plate tectonics.

The health of an ecosystem in the Earth’s own words.