Unlike other primates, humans are exposed to high levels of placental sex hormones in the womb, which may have shaped our evolutionary brain development ...

Ants in the genus Brachymyrmex have a 1:8 brain-to-body-mass ratio. (Image credit: vinisouza128 / 500px via Getty Images) Just as absolute brain size isn't a good predictor of animal intelligence ...

The brain plays a big part in the aging process, and scientists think they’ve pinpointed the specific cells that control it. In a study of mice, researchers at the Allen Institute identified ...

Scientists have mapped an unprecedentedly large portion of the brain of a mouse. The cubic millimeter worth of brain tissue represents the largest piece of a brain we’ve ever understood to this ...

The secret to our big brain may lie in the microbes that help the body break down food and produce energy. The findings are detailed in a study published December 2 in the journal Microbial Genomics .

There's a big change happening in neuroscience. Researchers are taking a closer look at cells that were once dismissed as merely the glue that holds a brain together.

Birds descended from the dinosaurs, but researchers have known relatively little about how the bird's brain took shape over millions of years. A new fossil sheds light on that mystery.