The video-sharing service takes to the skies on American Airlines.

Long is the latest entrant in a crowded GOP primary for retiring Sen. Roy Blunt's seat.

The spread of the delta coronavirus variant has pushed the threshold for herd immunity to well over 80% and potentially almost 90%, the Infectious Diseases Society of America said.

Twenty forest strongholds in Scotland would save the red squirrel from extinction even if grey squirrels were to colonise the whole of Britain, according to research. Since their introduction from North America by Victorian enthusiasts, grey squirrels...