24 hours in pictures

Mexico City, Mexico: Charro women ride their horses at the Racetrack of the Americas during a festival Photograph: Luis Acosta/AFP

Beijing, China: A worker hangs up traditional red lanterns ahead of the lunar new year Photograph: Teh Eng Koon/AFP

Poyntzfield, Scotland: Sub postmistress Mary Findlayson stands in front of Poyntzfield post office Photograph: Jeff J Mitchell/Getty

Portland, Oregon: Kamm Prongay and Liz Kellogg (R) embrace as they register as domestic partners, giving them many of the same benefits as married couples Photograph: Craig Mitchelldyer/Getty

Havana, Cuba: Members of the Buena Vista Social Club music group perform at the wake for Cuba's most famous conga drummer, Tata Guines Photograph: Adalberto Roque/AFP

Lower Manga, Kenya: Children walk to their school, among those which reopened this week following recent politically-inspired violence Photograph: Ben Curtis/AP

Peshawar, Pakistan: A boy waits his turn to buy food at a street stall Photograph: Emilio Morenatti/AP

Santa Ana, California: A crowd of supporters use cameras and phones to photograph former president Bill Clinton as he campaigns for his wife, Hillary Photograph: David McNew/Getty

Rio de Janeiro, Brazil: Carnival revellers make their way home Photograph: Dado Galdieri/AP

Roseburg, US: A nutria - a type of rodent resembling a beaver, originally from South America - begs for food near a city duck pond Photograph: STR/AP

Caracas, Colombia: A demonstrator holds a sign reading 'peace' during a march against the Farc rebel group Photograph: Howard Yanes/AP

Sapporo City, Japan: A man works on an ice sculpture for the city's Snow Festival Photograph: Robert Gilhooly/EPA

Olney, UK: Girls take part in a children's race before the annual Olney pancake race to mark Shrove Tuesday Photograph: Matt Dunham/AP

Crested Butte, Colorado: The Rev Tim Clark uses a snow blower to clear the entrance of the Union Congregational Church Photograph: Nathan Bilow/AP

Kiev, Ukraine: Rival MPs clash at the opening of a new session of Ukrainia's parliament Photograph: Sergey Dolzhenko/EPA

Havana, Cuba: A 15 metre high anti-imperialist sculpture, a gift from Brazilian architect Oscar Niemeyer to the ailing president, Fidel Castro Photograph: STR/AFP