A man jumps as he attempts an obstacle during the Bravus Race competition in Brasilia, Brazil, on August 2, 2015. Bravus Race challenges competitors to overcome several obstacles over a course of up to 15 kilometers (9.32 miles). #

Noah Wiles, three, looks at a bronzed fiberglass model of a Tyrannosaurus Rex on display during a press preview at Christie's in London on August 3, 2015. The dinosaur is estimated to sell for 10,000-15,000 pounds ($14,000-$21,000) and will be auctioned in the “Out of the Ordinary” sale on September 10 in London. #

Reindeer gather at a camping ground in far northern Russia on August 2, 2015. Local herders and members of their families gathered at the site to mark Reindeer Day, a professional holiday of reindeer-breeding workers, which is celebrated annually on August 2 in the region. #

A mother and her daughter pray for the victims of the 1945 atomic bombing of Hiroshima in front of the cenotaph at Peace Memorial Park in Hiroshima, western Japan, on August 6, 2015. Thursday marks the 70th anniversary of the attack on the city, where the U.S. dropped an atomic bomb on August 6, 1945, killing about 140,000 by the end of the year in a city of 350,000 residents. The Atomic Bomb Dome, or Genbaku Dome, was the only structure left standing in this district of the city and has been preserved as a peace memorial. #

A migrant waits to disembark from the Italian Coast Guard ship Oreste Corsi at the Messina harbor in Sicily, Italy, on August 4, 2015. Italy’s Coast Guard rescued 306 migrants on Tuesday and took them safely to land in Messina as the migrant death toll for 2015 reached more than 2,000 victims. #

An image of a bald eagle is projected onto the Empire State Building as part of a projection to raise awareness of endangered species, in New York on August 1, 2015. #

Chechen women enjoy themselves in the water on the outskirts of the regional Chechen capital of Grozny, Russia, on August 3, 2015. The beach outside Grozny will be off-limits to men, in line with Islamic rules, after Tuesday. A separate beach for men will be opened later. #

A migrant sleeps inside a tent at a camp set near Calais, northern France, on August 5, 2015. Thousands of migrants have been scaling fences near the Channel Tunnel linking the two countries and boarding freight trains or trucks destined for Britain. #

A Chinese tank moves during the International Army Games in Alabino, outside Moscow on August 3, 2015. The competition called for troops from Russia and several other nations to exhibit. #

The President of the International Olympic Committee, Thomas Bach, is helped by Brazilian national rugby players on Barra da Tijuca beach in Rio de Janeiro, Brazil, on August 4, 2015. Bach met with current and former Brazilian Olympians one year before Rio hosts the 2016 Olympic Games. #

An Indian man shows a window damaged in a skirmish near the India-Pakistan international border in Kanachack village, India, on August 4, 2015. Indian and Pakistani border guards traded gunfire and mortar shells along the disputed border in the Himalayan region of Kashmir on Tuesday. #

U.S. Senate Minority Leader Harry Reid (D-Nevada) attends a news conference following a party policy lunch meeting at the U.S. Capitol in Washington on August 4, 2015. #

Villagers try to stop cows from walking too far up a mountain as part of the festival in honor of the patron saint Esteban in the town of Arguedas, northern Spain, on August 6, 2015. #

Miss Bumbum Brazil 2015 pageant candidates parade at Paulista Avenue in Sao Paulo's financial center in Brazil on August 3, 2015. Twenty-seven candidates from each state in Brazil will compete in the annual pageant, which will be held in November 2015. #

A man ascends on an escalator as signs put up by the Sweden Democrats political party are seen at Ostermalmstorg subway station in Stockholm, Sweden, on August 3, 2015. #

Displaced women from the minority Yazidi sect hold balloons during a ceremony in Dohuk, northern Iraq, on August 3, 2015. Masoud Barzani, president of Iraq's Kurdistan region, vowed on Monday to help the Yazidis return to their homes after they fled from the Islamic State last year. #

Microphones dangle overhead as U.S. President Barack Obama views exhibits at the White House Demo Day, showcasing the work of inventors and entrepreneurs, at the White House in Washington on August 4, 2015. #

A lost whale, bottom right, swims near boats in an urban marina in Puerto Madero, Buenos Aires, Argentina, on August 3, 2015. On Tuesday, Argentine authorities successfully guided the whale out of the marina and hope that it will now return to sea via the Rio de La Plata river that feeds into the Atlantic. Roxana Schteinbarg, executive coordinator of the Whale Conservation Institute in Argentina, said the whale appears to be a 2-year-old humpback, and that it was likely making its first migration without its mother and got disoriented. #

Former Guatemalan dictator Efrain Rios Montt, covered with a blanket, lies on a stretcher inside an ambulance during his arrival to a private hospital for his psychological evaluation in Guatemala City on August 4, 2015. A court ruled that Montt was to be given a medical evaluation to determine if he is fit to stand trial again on genocide charges, reported local media. #

Pakistani villagers use a boat to carry their belongings from flooded homes caused by heavy rains on the outskirts of Nowshera near Peshawar, Pakistan, on August 2, 2015. Floodwater inundated hundreds of villages, leaving tens of thousands of people homeless, authorities said. #

An activist holds up a picture of photojournalist Ruben Espinosa during a protest against his murder at the Angel of Independence monument in Mexico City on August 2, 2015. The prominent Mexican news photographer was among five people found dead in a middle-class neighborhood of the capital on Friday, the city’s prosecutor said on Sunday. Espinosa, who a month ago claimed in interviews that he felt threatened by the governor of the eastern Veracruz state, was the lone male among five victims that police discovered bound and shot in the head in the capital's Narvarte neighborhood. Mexico City prosecutor Rodolfo Rios said at a press conference that Espinosa’s family members told investigators that the photographer had been residing in the capital for two months and was searching for work following eight years living in Veracruz. #

Republican presidential candidates, from left, Chris Christie, Marco Rubio, Ben Carson, Scott Walker, Donald Trump, Jeb Bush, Mike Huckabee, Ted Cruz, Rand Paul, and John Kasich take the stage for the first Republican presidential debate at the Quicken Loans Arena in Cleveland on August 6, 2015. #