A man presents a self-made robot that local media reported is able to carry a person, in Heihe, Heilongjiang province, China, April 5, 2017. (Photo by Reuters/China Daily)

DJ David Guetta (R) and rapper Nicki Minaj perform onstage during the 2017 Billboard Music Awards at T-Mobile Arena on May 21, 2017 in Las Vegas, Nevada. (Photo by Mario Anzuoni/Reuters)

A soldier walks on the bank of the river in central Pyongyang, North Korea on April 16, 2017. (Photo by Damir Sagolj/Reuters)

An Oakland Raiders cheerleader performs during the second half of an NFL football game against the Pittsburgh Steelers in Oakland, Calif., Sunday, October 27, 2013. (Photo by Marcio Jose Sanchez/AP Photo)

A couple chats at a park during sunset in Chihuahua November 15, 2014. (Photo by Jose Luis Gonzalez/Reuters)

People take part in a Halloween street party at Lan Kwai Fong on October 31, 2016 in Hong Kong. Halloween, a contraction of All Hallows' Evening, falls on the day before All Saints' Day on November 1, a holiday when Christians remember their deceased loved ones. (Photo by Lam Yik Fei/Getty Images)

An Iraqi Kurdish Peshmerga female officer bites a snake while demonstrating skills during a graduation ceremony in the Kurdish town of Soran, about 100 kilometres northeast of the capital of Iraq's autonomous Kurdish region Arbil, on February 12, 2020. (Photo by Safin Hamed/AFP Photo)

Actress Kaitlyn Leeb poses in front of the “Total Recall” display as the three breasted woman in the Sony booth on Day 2 of Comic-Con International 2012 held at San Diego Convention Center on July 12, 2012 in San Diego, California. (Photo by Splash News and Pictures)