Democratic frontrunner Hillary Clinton says rival Bernie Sanders is weak on gun control, as sparks fly at a presidential debate in Las Vegas.
The US and Russia are to hold new talks on air safety in Syria after it emerged combat aircraft from both nations recently came within miles of each other.
A picture of a red fox standing over the bloodied body of an Arctic fox wins the prestigious 2015 Wildlife Photographer of the Year.
The place where wolves could soon return
Women breaking the silence and sharing their pain
Am I really more likely to get cancer because I'm tall?
Training displaced Iraqis to take photos
The man who quit Microsoft and built thousands of libraries
'Wonderful place. Needs better politicians'
Wales end a successful Euro 2016 qualifying campaign with a scrappy win over Andorra on a night of celebration in Cardiff.