The Nobel laureate’s discoveries led to a treatment for Parkinson’s disease.

The organ’s blood-pumping capacity improved with the infusion of cells, a study shows.

Although highly controversial now, keeping orcas in captivity helped transform popular and scientific conceptions of the marine mammal from an unfeeling killer to a complex, intelligent animal.

A study of Shuar children in Ecuador provides a window into how the human body responds to infection in the sorts of conditions that shaped our species’ evolution.

The miniscule carriers successfully transported and released live cells at a particular location within living mice.

In adult mice, neurogenesis increases social confidence by suppressing the activity of mature neurons.

Machine-learning algorithms tuned to detecting cancer DNA in the blood could pave the way for personalized cancer care.

More than one-fifth of individuals treated with the genetically modified virus survived at least three years.