Jack London was a prolific photographer in addition to his writing. Here: Salvation Army barracks in London during Sunday morning rush – men who had been given tickets during the night queuing for free breakfast, 1902. (Photo by Jack London/Courtesy of Contrasto)

Military school cadets take part in a ceremony commemorating the 56th anniversary of the death of Camilo Cienfuegos who, along with Fidel Castro and Che Guevara, was a chief commander of the Cuban revolution in Havana, Cuba on October 28, 2015. (Photo by Xinhua/REX Shutterstock)

A car stands destroyed by debris, one day after a magnitude 5.1 quake killed at least 9 people, on May 12, 2011 in Lorca, Spain. After spending the night outside, residents of the historic Spanish town are awaiting the safety assessment of their houses to see wether they can return home or not. (Photo by Jasper Juinen/Getty Images)

A reveller is seen smoking at the annual gay pride parade in Santo Domingo in the Dominican Republic July 03, 2016. (Photo by Ricardo Rojas/Reuters)

Indian artist, Ravi Kali (32), dressed as Hindu goddess Kali, participates in a religious procession for the Hindu festival, Ganesh Chaturthi in New Delhi on September 24, 2015. (Photo by Chandan Khanna/AFP Photo)

ATTENTION PLEASE! This publication is NOT about cute animals! This is a compilation of photographs of DIFFERENT content! Some photos may SHOCK YOU.

Photo: An eleven-week-old lion cub growls as she plays with a stuffed toy at the San Francisco Zoo April 25, 2003 in San Francisco, California. The cub's mother, Kita, died two days after giving birth to her and her brother. Zookeepers have hand fed and cared for the two surviving cubs around the clock since their mother died. (Photo by Justin Sullivan/Getty Images)

A receptionist dinosaur robot performs at the new robot hotel, aptly called Henn na Hotel or Weird Hotel, in Sasebo, southwestern Japan, Wednesday, July 15, 2015. From the receptionist that does the check-in and check-out to the porter that’s a stand-on-wheels taking luggage up to the room, the hotel, that is run as part of Huis Ten Bosch amusement park, is “manned” almost totally by robots to save labor costs. (Photo by Shizuo Kambayashi/AP Photo)

A member of a local swimming club holds a Russian national flag as he dives in at the start of a 24-hour swimming marathon near the western Siberian city of Barnaul March 29, 2014. Thirty members of the club will swim in turn during the event, held to mark Crimea becoming part of Russia, local media reported. (Photo by Andrei Kasprishin/Reuters)