Astrocytes, brain cells previously thought to be support cells for neurons, regulate blood flow in the brain and may aid neuron signaling. The regulation of blood flow makes visualizing brain activity with fMRI possible.

New map of brain's anatomy reveals communication hub that corresponds to an area active when the mind wanders.

Epigenetic shifts continue throughout a person’s lifetime, and the overall pattern of these shifts appears similar within families.

For the first time, scientists have resurrected a piece of DNA from an extinct animal — the Tasmanian tiger. The researchers engineered mice with a piece of the long-gone marsupial's DNA that turns on a collagen gene in cartilage-producing cells.

New genetic tests to distinguish viable from nonviable embryos may help eliminate risky multiple births from fertility procedures.

Human brains rewire when people lose a sense, but a new study of people who have regained vision shows that the rewired areas retain their old abilities.