These powerful images capture the spear-wielding tribes of Papua new Guinea who believe they are possessed with the spirit of the crocodile. They show how the Kangunaman clansmen scar their backs to resemble reptile scales while the Huli Wigmen wear elaborate headdresses to signal they are ready for battle. (Photo by Trevor Cole/Media Drum World)

Surfer Gary Clisby rides his foil board on a morning swell of the coast of Carlsbad, California on May 23, 2018. Harnessing the “foiling” technology more typically seen on racing catamarans in sailing's America's Cup, the surfboards appear to fly above the water thanks to a fin attached to the bottom of the board. (Photo by Mike Blake/Reuters)

Taiwanese artist Hank Cheng poses with his miniature model of Taipei street scenes, in New Taipei City, Taiwan on June 17, 2018. While some of the vehicles used in Cheng's street scenes are bought in shops, all the buildings and small details like the magazines and the furniture for his model houses are created from scratch. (Photo by Tyrone Siu/Reuters)

Some 300 girls and women in India still practise open defecation. Over half the country’s population, 800 million people, do not have access to a toilet that meets basic standards. (Photo by Poulomi Basu/WaterAid)

After school and civil service, Thomas Mangold went off to study Visual Communications in Dortmund where he still lives. During these studies, he had the opportunity for an internship at the advertising agency Grey Dusseldorf and also began to receive invites to publish his photographic series in magazines. Around this time, a new professor at the college arranged a one week intensive seminar in Strata 3D.

Women with their faces painted as various Hindu deities take part in a celebration a day after the first democratic constitution was announced in Kathmandu, Nepal September 21, 2015. Nepal adopted its first full democratic constitution on Sunday, a historic step for a nation that has witnessed war, a palace massacre and devastating earthquakes since a campaign to create a modern state began more than 65 years ago. (Photo by Navesh Chitrakar/Reuters)

Girls of the Long Horn Miao ethnic minority group wear headdresses as they prepare gather for Tiaohua or Flower Festival as part of the Lunar New Year on February 6, 2017 in Longga village, Guizhou province, southern China. (Photo by Kevin Frayer/Getty Images)

Contestants congratulate Chelsea Morgensen (R) of Hollywood, California as she is crowned Miss Hooters International 2017 during the 21st Annual Hooters International Swimsuit Pageant at The Pearl concert theater at Palms Casino Resort on July 12, 2017 in Las Vegas, Nevada. (Photo by Alamy Stock Photo)