A Siproeta stelenes butterfly is seen at the Santillana del Mar Zoo, in northern Spain, Reuters Archive. Photo by Victor Fraile.

Bosnian Muslim priests stand by the coffins of people found in mass graves and prepared for funeral in Foca, Reuters Archive. Photo by Damir Sagolj.

A dead tree behind a barbed-wire fence stands in the drought-effected farming area of the McLaren Vale region in South Australia, 80 kilometers south-east of Adelaide, Reuters Archive. Photo by David Gray.

Close to 200 participants from the fan-based «501st Legion» dress as Stormtroopers as they make their way down Colorado Boulevard during the 118th Tournament of Roses Parade in Pasadena, U.S., Reuters Archive. Photo by Gus Ruelas.

An employee walks up a flight of stairs at one of the huge tanks storing strategic oil reserves at Hungarian oil and gas group MOL’s main Duna (Danube) refinery in Szazhalombatta, Hungary, Reuters Archive. Photo by Laszlo Balogh.

Performers dressed in Philippine traditional costumes wait during a spouses program as part of the 12th Association of Southeast Asian Nations (ASEAN) Summit in Cebu, central Philippines, Reuters Archive. Photo by Paul Yeung.

Members of the group People for the Ethical Treatment of Animals (PETA) Europe in body-painted Leopard spots are photographed in Covent Garden, London, as they protest against the bullying of Celebrity Big Brother contestant and animal advocate Shilpa Shetty, England, Reuters Archive. Photo by Kieran Doherty.

A Japanese buyer chooses gemstones from Thailand at the 18th International Jewellery Tokyo fair in Tokyo, Japan, Reuters Archive. Photo by Kim Kyung Hoon.

A Ferris wheel is seen against the sky on Odaiba, a large artificial island in Tokyo Bay, Japan, Reuters Archive. Photo by Kim Kyung Hoon.

A woman stands near a waterfall that has been dirtied by ash that has accumulated from the ash plume of an erupting volcano near Eyjafjallajokull, Iceland, Reuters Archive. Photo by Lucas Jackson.

An armoured vehicle from the Centurion Company, 2-1 Infantry Battalion, 5/2 Stryker Brigade Combat Team is framed by a bolt of lightning during a storm at Combat Outpost Terminator in Maiwand District, Kandahar Province, Afghanistan, Reuters Archive. Photo by Tim Wimborne.

Tibetan monks walk amid sandstorms as they attend a mass prayer for the earthquake victims in the quake-hit Gyegu town of Yushu county, Qinghai province, China, Reuters Archive. Photo by Kevin Zhao.

A woman from the Tarahumara ethnic group walks covered in a blanket as they prepare for winter in Caborachi village, in Guachochi, Mexico, Reuters Archive. Photo by Jose Luis Gonzalez.

Birds fly over a junkyard in Kosovo Polje where Kosovars pick through junk coming from NATO-led peacekeeping force (KFOR) and other places across the province, Serbia, Reuters Archive. Photo by Damir Sagolj.

South African members of the Shembe faith (Nazareth Baptist Church), a religious hybrid of Christianity and African traditions, gather for a service on the Nhlangakazi Mountain during their annual pilgrimage near Inanda, north of Durban, Reuters Archive. Photo by Rogan Ward.