From sibling murder to snakes for breakfast, birds’ lives may be darker than you imagine.

Medicare Advantage plans say it reduces waste and inappropriate care. Critics say it often restricts coverage unnecessarily.

Officials from NASA and Boeing say they have worked out a solution to a helium leak that has kept the Starliner astronaut capsule grounded.

Muscle from a sick dairy cow tested positive for the virus. The meat did not enter the commercial food supply, which officials said remained safe.

Negotiators plan to ask for more time. Among the sticking points are equitable access to vaccines and financing to set up surveillance systems.

A new analysis of dozens of studies has identified the most common warning symptoms in adults under 50, whose rates of colon and rectal cancer are on the rise.