Rugby Union, Hong Kong Sevens, Hong Kong Stadium on April 9, 2016: A fan wearing a mask is hugged. (Photo by Bobby Yip/Reuters)

Conjoined twins Shivanath and Shivram Sahu have found a remarkable way to get to school – dropping to the floor and running like a spider.

A model displays shoes during the Ryan LO Autumn/Winter show at London Fashion Week, Friday, February 19, 2016. (Photo by Kirsty Wigglesworth/AP Photo)

Drivers push cars to gas station during “oil crisis”, Roslindale, Boston, Massachusetts, 1973. (Photo by Spencer Grant/Getty Images)

Kazakh law enforcement officers detain a woman during a protest rally by opposition supporters in Nur-Sultan on September 21, 2019. (Photo by Orken Zhoyamergen/Radio Free Europe/Radio Liberty)

When Ed Templeton was a young skateboarder in California, he took Polaroids of his friends smoking at their local park. Those pictures in 1994 were the start of a lifelong habit – Templeton has been capturing youngsters all over the world experimenting with cigarettes ever since. Here: Santiago, Chile, 2002. (Photo by Ed Templeton/Robert & Tilton Gallery, Culver City)

Children attend a war safety awareness class conducted by civil defence members, in the rebel-controlled area of Maaret al-Numan town in Idlib province, Syria May 14, 2016. (Photo by Khalil Ashawi/Reuters)

Jack, a Lurcher from Dogs Trust Salisbury, walks past a window display of models in a Dogs Trust shop window in Salisbury, as part of a campaign to discourage the impulse buying of dogs ahead of Valentine's Day, on February 10, 2014. (Photo by Matt Alexander/PA Wire)