We asked our readers to send in their best pictures on the theme of "winter walks". Here is a selection of the photographs we ...

After being struck down by winter illness, the BBC's James Gallagher goes in search of ways to boost his immune system.

Polar bears are among the planet's most iconic symbols of cold climate adaptation. They boast a thick layer of blubber, ...

Five Thai workers released after being held hostage for over a year in Gaza arrived in Bangkok on Sunday. During an earlier ...