The latest stories from the Home section of the BBC News web site.
Updated: 40 min 2 sec ago
More than 100 people have been killed following a weekend of violence in north-east Nigeria.
Fewer crop species are feeding the world than 50 years ago, raising concerns about the resilience and nutritional value of the global food system, a study says.
US President Barack Obama warns that Israeli PM Benjamin Netanyahu must make "tough decisions" to advance peace talks with the Palestinians.
Samba dancer Luara Neto Lino explains how she has spent more than six months preparing for this week's carnival event in Rio de Janeiro
South Africa captain Graeme Smith will retire from international cricket after the third Test against Australia.
Little-known singer-songwriter Molly Smitten-Downes is to represent the UK at this year's Eurovision Song Contest.