A reveller blows fire during Lunar New Year celebrations at Manila's Chinatown...A reveller blows fire during Lunar New Year celebrations at Manila's Chinatown February 19, 2015. The Chinese Lunar New Year on February 19 will welcome the Year of the Sheep (also known as the Year of the Goat or Ram).      REUTERS/Erik De Castro  (PHILIPPINES - Tags: SOCIETY)

Erik De Castro/Reuters

A reveller blows fire during Lunar New Year celebrations at Manila‘s Chinatown. The Chinese Lunar New Year on Thursday will welcome the Year of the Sheep (also known as the Year of the Goat or Ram) 

Afghan families watch the live broadcast of the Cricket World Cup match between Afghanistan and Bangladesh at a refugee camp in Kabul...Afghan families watch the live broadcast of the Cricket World Cup match between Afghanistan and Bangladesh at a refugee camp in Kabul February 18, 2015. REUTERS/Omar Sobhani (AFGHANISTAN - Tags: SPORT CRICKET)

Omar Sobhani/Reuters

Afghan families watch the live broadcast of the Cricket World Cup match between Afghanistan and Bangladesh at a refugee camp in Kabul on Wednesday.

The zodiacal light...epa04625060 The zodiacal light (L) and the Milky Way (R) are seen from the region of Salgotarjan, 109 kms northeast of Budapest, Hungary, 17 February 2015. The Zodiacal light, a cone-shaped shine, visible above the western horizon after sunset, is caused by the sunshine refelected from the interplanetary dust particles of the zodiacal cloud. The phenomenon can be observed the best in February and March from the Northern Hemisphere.  EPA/PETER KOMKA HUNGARY OUT

Peter Komka/EPA

Zodiacal light (L) and the Milky Way (R) as seen from Salgótarján, 109km northeast of Budapest, Hungary. The cone-shaped light is caused by sunshine reflected from dust particles of the zodiacal cloud. The phenomenon can be observed the best in February and March 

A cameraman films as Russian aerobatic team Yakovlev performs at the inaugural function of Aero India 2015 at Yelahanka air base in Bangalore, India, Wednesday, Feb. 18, 2015. Aviation companies from around the world are participating in the five-day event which runs through Feb. 22. (AP Photo/Aijaz Rahi)

Aijaz Rahi/AP

A cameraman films as Russian aerobatic team Yakovlev performs at the inaugural function of Aero India 2015 at Yelahanka air base in Bangalore. Aviation companies from around the world are participating in the five-day event that runs through Feb 22 

An elderly woman holds her head after collecting supplies of humanitarian aid in the town of Debaltseve, Ukraine, Friday, Feb. 6, 2015. German Chancellor Angela Merkel and French President Francois Holland are set to hold talks with Russian President Vladimir Putin in the Kremlin on Friday, one day after discussing peace proposals for Ukraine's conflict with Ukrainian President Petro Poroshenko. (AP Photo/Petr David Josek)

Petr David Josek/AP

An elderly woman collects humanitarian aid in the town of Debaltseve, Ukraine. German Chancellor Angela Merkel and French President François Hollande are to hold peace talks with Russian President Vladimir Putin in the Kremlin on Friday 

People cross a street in Tokyo, Friday, Feb. 6, 2015. Legislation that will be submitted during the parliamentary session that began Jan. 26, 2015 aims to ensure workers get the rest they need. In a break with past practice, it will become the legal responsibility of employers to ensure workers take their holidays. Japan has been studying such legislation for years. There has been more impetus for change since 2012 as a consensus developed that the health, social and productivity costs of Japanís extreme work ethic were too high. Part of the problem has been that many people fear resentment from co-workers if they take days off, a real concern in a conformist culture that values harmony. (AP Photo/Koji Sasahara)

Koji Sasahara/AP

People cross a street in Tokyo. Legislation that will be submitted during the parliamentary session that began Jan. 26, 2015 aims to ensure workers get the rest they need. In a break with past practice, it will become the legal responsibility of employers to ensure workers take their holidays. Japan has been studying such legislation for years. There has been more impetus for change since 2012 as a consensus developed that the health, social and productivity costs of Japan’s extreme work ethic were too high. Part of the problem has been that many people fear resentment from co-workers if they take days off, a real concern in a conformist culture that values harmony. 

In this photograph taken on February 5, ...In this photograph taken on February 5, 2015, Afghan labourer, Shir Ahmad (26) sorts carpet wraps at a traditional yarn factory in Mazar-i-sharif of Balkh province.  The labourers work from dawn to dusk and earn around four US dollars per day, with the products sold for the local market.  AFP PHOTO / Farshad UsyanFARSHAD USYAN/AFP/Getty Images

Farshad Usyan/AFP/Getty

Afghan labourer, Shir Ahmad sorts carpet wraps at a traditional yarn factory in Mazar-i-sharif of Balkh province. The labourers work from dawn to dusk and earn around $4 a day, with the products sold for the local market 

An Afghan refugee boy walks toward a hand pump to fetch water, in a slum on the outskirts of Islamabad, Pakistan, Tuesday, Feb. 3, 2015. (AP Photo/Muhammed Muheisen)

Muhammed Muheisen/AP

An Afghan refugee boy walks toward a hand pump to fetch water, in a slum on the outskirts of Islamabad, Pakistan 

A flock of starlings is seen as...TOPSHOTS A flock of starlings is seen as they perform their traditional dance fly before landing to sleep during the sunset near the southern Arab Israeli city of Rahat, in the northern Israeli Negev desert, on February 2, 2015. AFP PHOTO / MENAHEM KAHANAMENAHEM KAHANA/AFP/Getty Images

Menahem Kahana/AFP

A flock of starlings is seen as they perform their traditional dance fly before landing to sleep during the sunset near the southern Arab Israeli city of Rahat, in the northern Israeli Negev desert. 

Italy's new President Sergio Mattarella and Prime Minister Matteo Renzi arrive by car for a welcoming ceremony, at the Quirinale presidential palace in Rome...Italy's new President Sergio Mattarella and Prime Minister Matteo Renzi arrive by car for a welcoming ceremony, at the Quirinale presidential palace in Rome, February 3, 2015. REUTERS/Tony Gentile (ITALY  - Tags: POLITICS)

Tony Gentile/Reuters

Italy’s new President Sergio Mattarella and Prime Minister Matteo Renzi arrive for a welcoming ceremony, at the Quirinale presidential palace in Rome. 

Syrian children react as they wait for t...Syrian children react as they wait for treatment at a makeshift hospital in the rebel held area of Douma, north east of the capital Damascus, following reported air strikes by forces loyal to President Bashar al-Assad on February 2, 2015. More than 200,000 people have been killed in Syria since the conflict started, and around half of the country's population has been displaced. AFP PHOTO / ABD DOUMANYABD DOUMANY/AFP/Getty Images

Abd Doumany/AFP/Getty

Syrian children react as they wait for treatment at a makeshift hospital in the rebel held area of Douma, north east of the capital Damascus, following reported air strikes by forces loyal to President Bashar al-Assad.

TOPSHOTS Umbrellas protect condolence bo...TOPSHOTS Umbrellas protect condolence books for victims of the siege at the Lindt Cafe where three people, including the lone gunman, died in December 2014, from the rain before being signed by visiting British foreign and defence secretaries in Sydney on February 2, 2015. The visit to the site was held ahead of annual Australia-UK security talks. AFP PHOTO / Peter PARKSPETER PARKS/AFP/Getty Images

Peter Parks/AFP

Umbrellas are used to protect condolence books for victims of the siege at the Lindt Cafe in Sydney before they are signed by visiting British foreign and defence secretaries on Monday. Three people, including the lone gunman who took 17 hostages during the siege, died in December. The visit to the site was held ahead of annual Australia-UK security talks. 

A mannequin is pictured at a damaged building in Kobani...A mannequin is pictured at a damaged building in the northern Syrian town of Kobani January 28, 2015.  Sheets meant to shield residents from the snipers' sights still hang over the streets of this Syrian border town, and its shattered buildings and cratered roads suggest those who fled are unlikely to return any time soon. Kurdish forces said this week they had taken full control of Kobani, a mainly Kurdish town near the Turkish border, after months of bombardment by Islamic State, an al Qaeda offshoot that has spread across Syria and Iraq. Picture taken January 28, 2015. REUTERS/Osman Orsal (SYRIA - Tags: POLITICS CONFLICT MILITARY TPX IMAGES OF THE DAY)

Osman Orsal/Reuters

A mannequin is pictured at a damaged building in the northern Syrian town of Kobani. Sheets meant to shield residents from the snipers’ sights still hang over the streets of this Syrian border town, and its shattered buildings and cratered roads suggest those who fled are unlikely to return any time soon. Kurdish forces said this week they had taken full control of Kobani, a mainly Kurdish town near the Turkish border, after months of bombardment by Islamic State, an al Qaeda offshoot that has spread across Syria and Iraq. 

Press preview for Waterloo at Windsor: 1815-2015 Exhibition...WINDSOR, ENGLAND - JANUARY 28: A member of the Royal Collection staff poses besides a portrait of the Duke of Wellington in the Waterloo Chamber during a press preview for Waterloo at Windsor: 1815-2015 Exhibition at Windsor Castle on January 28, 2015 in Windsor, England. Paintings in the chamber will be on display with objects presented to George IV from the battle of Waterloo, which celebrates it's bicentennial this year. The exhibition opens at Windsor Castle from January 31, to January 13, 2016 as part of the 200th anniversary of the Battle of Waterloo celebrations.  (Photo by Dan Kitwood/Getty Images)

Dan Kitwood/Getty

A member of the Royal Collection staff poses besides a portrait of the Duke of Wellington in the Waterloo Chamber during a press preview for Waterloo at Windsor: 1815-2015 Exhibition at Windsor Castle in Windsor, England. Paintings in the chamber will be on display with objects presented to George IV from the battle of Waterloo, which celebrates it’s bicentennial this year. The exhibition opens at Windsor Castle from January 31, to January 13, 2016 as part of the 200th anniversary of the Battle of Waterloo celebrations. 

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Peter Macdiarmid/Getty

Conservator Lucy Ackland cleans Winston Churchill‘s memorial stone in Westminster Abbey on Thursday in London, England. Events, including a wreath laying ceremony at Westminster Abbey, are taking place this week to commemorate the 50th anniversary of the death and state funeral of Britain’s wartime leader. 

TOPSHOTS Starlings fly in the sky of Rom...TOPSHOTS Starlings fly in the sky of Rome at sunset on January 27, 2015.  AFP PHOTO / FILIPPO MONTEFORTEFILIPPO MONTEFORTE/AFP/Getty Images

Filippo Monteforte/AFP/Getty

Starlings fly in the sky of Rome at sunset

Street Dogs Of Athens...ATHENS, GREECE - JANUARY 27:  (EDITORS NOTE: This image was processed using digital filters) In this photo montage stray dogs are seen in the centre of Athens on January 27, 2015 in Athens, Greece. Stray dogs are a common sight in Athens with many living in small packs in the city's various squares or near tourist spots such as the Acropolis. Most are monitored and tagged by the local authorities receiving vaccinations and veterinary attention when needed. The streets - which the dogs have learnt to navigate around, negotiating busy road junctions and pedestrian crossings - also provide in the main, the food, water and shelter they need whilst various charities and individuals also are involved in their welfare. The reason for their large numbers is varied but theories have included the closure of the traditional city dog pound and the fact that keeping dogs as pets is a relatively recent phenomena in Greece and some owners do not realise the commitment involved and release the dogs as strays. Before the Olympics in 2004 it was widely reported that thousands of dogs had been rounded up and poisoned and in 2011 one stray was even named runner up for TIME magazine's Animal of Year after he was widely photographed siding with demonstrators barking at riot police during the anti-austerity protests at the height of Greece's debt crisis  (Photo by Matt Cardy/Getty Images)

Matt Cardy/Getty

In this photo montage stray dogs are seen in the centre of Athens, Greece. Stray dogs are a common sight in Athens with many living in small packs in the city’s various squares or near tourist spots such as the Acropolis. Most are monitored and tagged by the local authorities receiving vaccinations and veterinary attention when needed. The streets – which the dogs have learnt to navigate around, negotiating busy road junctions and pedestrian crossings – also provide in the main, the food, water and shelter they need whilst various charities and individuals also are involved in their welfare. The reason for their large numbers is varied but theories have included the closure of the traditional city dog pound and the fact that keeping dogs as pets is a relatively recent phenomena in Greece and some owners do not realise the commitment involved and release the dogs as strays. Before the Olympics in 2004 it was widely reported that thousands of dogs had been rounded up and poisoned and in 2011 one stray was even named runner up for TIME magazine’s Animal of Year after he was widely photographed siding with demonstrators barking at riot police during the anti-austerity protests at the height of Greece’s debt crisis 

Serena of the U.S. celebrates defeating Cibulkova of Slovakia to win their women's singles quarter-final match at the Australian Open 2015 tennis tournament in Melbourne...Serena Williams of the U.S. celebrates defeating Dominika Cibulkova of Slovakia to win their women's singles quarter-final match at the Australian Open 2015 tennis tournament in Melbourne January 28, 2015.     REUTERS/Carlos Barria (AUSTRALIA  - Tags: SPORT TENNIS)

Carlos Barria/Reuters

Serena Williams of the U.S. celebrates defeating Dominika Cibulkova of Slovakia to win their women’s singles quarter-final match at the Australian Open 2015 tennis tournament in Melbourne, Australia

Vendors sell clothes on the roadside at a second-hand street side clothing market in Mumbai...Vendors sell clothes on the roadside at a second-hand street side clothing market in Mumbai January 28, 2015. The market is open daily for three hours and hundreds of vendors gather to barter or sell used clothing. REUTERS/Danish Siddiqui (INDIA - Tags: SOCIETY BUSINESS)

Danish Siddiqui/Reuters

Vendors sell clothes on the roadside at a second-hand street side clothing market in Mumbai. The market is open daily for three hours and hundreds of vendors gather to barter or sell used clothing.

A flock of coloured pigeons fly during a pigeon-breeding competition in the southern Spanish village of Bollullos de la Mitacion, on January 27, 2015. During competition a single dove is chased by dozens of pigeon cocks resulting winner the male which courts the hen for longer.

Cristina Quicler/AFP/Getty

A flock of coloured pigeons in pursuit of a dove during a pigeon-breeding competition in the southern Spanish village of Bollullos de la Mitación, Spain.