Photos of the week
The most compelling photos from the week's news, including the Australian Open, a vulture accused of being a spy and the Iowa caucuses.
In this photo, Germany's Angelique Kerber celebrates after an upset victory over Serena Williams of the U.S. in the final of the Australian Open tennis tournament at Melbourne Park, Australia, January 30, 2016.
By CBSNews.com Senior Photo Editor Radhika Chalasani
SAG Awards - Viola Davis
Viola Davis holds the award for Outstanding Performance by a Female Actor in a Drama Series for her role in "How to Get Away With Murder" during the 22nd Screen Actors Guild (SAG) Awards in Los Angeles, January 30, 2016.
Cruz wins Iowa caucuses
Republican presidential candidate Ted Cruz kisses his wife Heidi Cruz after winning at his Iowa caucus night rally in Des Moines, February 1, 2016.
Donald Trump finished second and Marco Rubio third in the Republican caucuses.
Zika virus
Jose Wesley, who was born with microcephaly and screams uncontrollably for long stretches, is attended to in Bonito, Pernambuco state, Brazil, January 30, 2016.
The Zika virus is drawing worldwide attention to a devastating birth defect that until now has gotten little public notice.
Regardless of whether the mosquito-borne virus causes babies to be born with abnormally small heads, a variety of other conditions can trigger it.
Super Bowl 50 sign
A couple walk past a Super Bowl 50 sign in front of City Hall Thursday, February 4, 2016, in San Francisco.
The championship game will be played between the Carolina Panthers and the Denver Broncos in Santa Clara, California on February 7.
China - Illegal firecrackers destroyed
People watch police destroy confiscated illegal firecrackers in Shenyang, Liaoning province, China, January 29, 2016.
Haiti protest
A man demonstrates in Port-au-Prince, on February 4, 2016 against Haitian President Michel Martelly.
Martelly's term ends February 7, and with no successor in place, Haiti is facing a constitutional crisis. Haiti's electoral authority postponed the planned January 24 presidential run-off amid mounting opposition street protests and voting fraud allegations.
Tokyo - Animal escape practice
A zoo keeper dressed in a zebra suit takes part in a drill to practice what to do in the event of an animal escape at the Ueno Zoo in Tokyo on February 2, 2016.
About 150 zookeepers participated in the annual drill.
Firebomb explodes
A firebomb explodes beside a riot policeman during a massive protest on February 4, 2016.
Thousands of people marched across Greece as diverse classes united in a crippling general strike over a pension overhaul that has sparked a major backlash against embattled leftist Prime Minister Alexis Tsipras.
L.A. - SAG Awards
Seating placards are pictured during preparations for the 22nd annual Screen Actors Guild Awards at the Shrine Auditorium in Los Angeles, January 29, 2016 the day before the show.
Djokovic wins Australian Open
Britain's Andy Murray reacts as Serbia's Novak Djokovic (L) speaks while holding the men's singles trophy after Djokovic won their final match at the Australian Open tennis tournament at Melbourne Park, Australia, January 31, 2016.
Ouyoun al-Siman ski slopes
A general view of Ouyoun al-Siman ski slopes in the Lebanese mountains, February 5, 2016.
India - 'Gatka'
Men perform the Sikh martial art known as 'Gatka' as they take part in a 'rural Olympics' sports festival in Kilaraipur, on the outskirts of Ludhiana, India on February 5, 2016.
Clinton greets supporters
Hillary Clinton greets supporters at a campaign rally in Des Moines, January 31, 2015.
Snowfall in China
Plants are seen after a snowfall in Xi'an, China, January 31, 2016.
Spain - Listing cargo ship
The cargo ship Modern Express is reflected in water on the dock as it lists at a mooring in the port of Bilbao, in Zierbena, northern Spain, February 4, 2016.
The 164-meter vessel, which was transporting 3,600 tons of wood along with construction machinery, was towed to the port on Wednesday after spending six days listing and adrift in the Bay of Biscay.
Netherlands - Eagle catches drone
An eagle is seen gliding straight toward a drone before clutching it and dragging it to the ground in Rotterdam, Netherlands, January 29, 2016, in this photo released by the Netherlands police on February 1, 2016.
Dutch police, puzzling over how to remove drones that pose a public safety threat, are testing a way to get the job done in one fell swoop: with trained eagles.
Martin Shkreli - Capitol Hill
Martin Shkreli, (C) former CEO of Turing Pharmaceuticals LLC, arrives before a House Oversight and Government Reform hearing on "Developments in the Prescription Drug Market Oversight" on Capitol Hill in Washington, February 4, 2016.
Shkreli, known for an astronomical drug price increase, took the Fifth Amendment as he refused to answer questions.
Adnan Syed
Convicted murderer Adnan Syed (R) arrives at the Baltimore City Circuit Courthouse in Baltimore, February 4, 2016.
The Maryland man whose 2000 murder conviction was thrown into question by the popular "Serial" podcast was in court to argue he deserved a new trial because his lawyers had done a poor job with his case.
Trump in New Hampshire
Donald Trump speaks during a campaign rally in Portsmouth, New Hampshire, February 4, 2016.
Mount Sakurajima
Volcanic lightning is seen during an eruption of Mount Sakurajima in this photo taken from Tarumizu city, Kagoshima prefecture in southwestern Japan, February 5, 2016.
The volcano, about 50 km (30 miles) from a nuclear plant, erupted on Friday sending fountains of lava into the night sky.
Britain - Dead sperm whale
A dead sperm whale lies on Hunstanton beach in Norfolk, eastern England on February 5, 2016.
The whale was discovered on the beach on the morning of February 4. This is the second sperm whale to be beached on Hunstanton Beach and the sixth whale that the UK Coastguard has dealt with on beaches in eastern England over the two weeks.
Julian Assange
WikiLeaks founder Julian Assange holds a copy of a U.N. ruling as he makes a speech from the balcony of the Ecuadorian Embassy in central London, February 5, 2016.
Assange should be allowed to go free from the Ecuadorian embassy in London and be awarded compensation for what amounts to a three-and-a-half-year arbitrary detention, a U.N. panel ruled on Friday.
Lisbon - Dance troupe
Members of the Shanxi Folk Dance and Music Troupe perform during a rehearsal before a show at the Orient Museum in Lisbon, February 1, 2016.
The show is part of the Chinese New Year Celebrations program of the Orient Museum in Lisbon.
China - Holiday rush
Passengers crowd at the waiting hall inside a railway station after trains were delayed due to heavy snow, during the travel rush ahead of the upcoming Spring Festival, in Hangzhou, Zhejiang province, China, February 1, 2016.
Vulture accused of spying
Israeli medical staff members treat a vulture at a veterinary clinic in the Wildlife Hospital of Ramat Gan Zoo Safari near Tel Aviv on January 29, 2016.
The vulture captured in Lebanon on suspicion of spying for Israel has been returned home with the help of the United Nations, Israeli authorities said.
The UN acted as a go-between in negotiations between the Lebanese and the Gamla Nature Reserve where the bird lived before it flew across the border.
President Obama
President Barack Obama participates in a roundtable discussion with members of the Muslim community while visiting the Islamic Society of Baltimore February 3, 2016 in Windsor Mill, Maryland.
Seven years into his presidency, Obama made his first trip to an American mosque on February 4, offering a high-profile rebuttal of harsh Republican election-year rhetoric against Muslims.
Kenya - Elephant throws mud
An African elephants throws mud onto himself at the Mpala Research Center and Wildlife Foundation, near Rumuruti, Laikipia District, Kenya on January 31, 2016.
DMZ graduation
A graduate (L) wearing traditional dress salutes as a South Korean soldier (R) stands guard during a graduation ceremony for Taesungdong Elementary School at Taesungdong freedom village in the Demilitarized zone dividing the two Koreas in Paju on February 4, 2016.
Six students graduated from the only school in this South Korean village sitting inside the demilitarized zone between North and South Korea.
Yemen - Mortar shell attack
A Yemeni man carries the body of a child killed in a mortar shell attack on the country's flashpoint southern city of Taez, as clashes between fighters from the Popular Resistance Committees, loyal to Yemen's fugitive President and Shiite Huthi rebels continue on February 3, 2016.
The city of Taez is held by loyalists of Yemen's internationally recognized government, but it has been besieged by the Iran-backed rebels for months.
Contaminated water
Flint residents Gladyes Williamson (C) holds a bottle full of contaminated water, and a clump of her hair, alongside Jessica Owens (R), holding a baby bottle full of contaminated water, during a news conference after attending a House Oversight and Government Reform Committee hearing on the Flint, Michigan water crisis on Capitol Hill in Washington, DC., February 3, 2016.
Williamson, and Owens traveled to Washington by bus with other Flint families to attend the House hearing on the crisis, and demand that Michigan Gov. Rick Snyder be brought before Congress to testify under oath.
Bogota - Wildfire
Soldiers arrive to help control a wildfire in a forest area on the mountains surrounding Bogota, Colombia, Feb. 1, 2016.
Most of the country is under a red alert because of water shortages and risk of wildfires. El Niño-related effects have intensified the regional dry season along with a record lack of rainfall this year.
Brazilian strike
Airline crew members attend a two hour strike calling for increase in their salary at Congonhas airport in Sao Paulo, Brazil, February 3, 2016.
Brazilian airline pilots and stewards halted work for two hours on Wednesday in a pay dispute, delaying and canceling flights across the country days before the start of the carnival holiday season.