A UFC fight on the White House lawn is among a range of events planned to celebrate the 250th anniversary of America's founding.

Russian incursions into UK defences risk crossing a line, Chief of the Defence Staff Sir Richard Knighton tells the BBC.

The charity says it is facing "an exceptionally challenging trading environment".

Jackie Jantos says loneliness and lack of confidence were challenges for young adults looking for relationships.

Ollie Robinson was exiled from the England team for 24 Tests - on the first day against New Zealand, he showed them what they had been missing.

Cats and dogs can be allergic to pollen, but getting a diagnosis is a lengthy process.

How much attention did you pay to what happened in the world over the past seven days?

From a Soviet-era sanatorium to a floating market in Bangladesh, this year's World Food Photography Awards capture the many ways food shapes daily life around the world.

From a darkly comic tale of revenge to a beautiful contemplation on friendship, here are the year's most acclaimed works of fiction so far.

All-female species have been long thought of as evolutionary dead ends – but one fish has defied the odds to live without males, revealing new clues to how genomes stay healthy.

In the Great Barrier Reef, a venomous snail catches and devours its prey in a silent, lethal game of ambush.

Rooted in Buddhist teachings, Sri Lanka's roadside dansal offer free food and drinks to strangers – and this year, the tradition feels especially relevant.