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Emotions feel deeply personal and immediate, but underneath that subjective experience is a fairly well-characterized biological system: specific bra

For a long time, the working assumption in biology was that complex problem-solving required a large, primate-like brain. That assumption has collaps

For much of the twentieth century, neuroscientists assumed the adult brain was essentially fixed, its circuitry wired during development and largely

There's no single place in the brain where a memory sits waiting to be retrieved, and no biological equivalent of a hard drive sector storing it inta

Mammals are defined by two features almost every species shares: nursing offspring with milk, and investing heavily in parental care after birth.

Powered flight is one of the most demanding feats a vertebrate body can perform, and birds are built around it from the skeleton outward. Nearly