The legendary silver fox is a creature of mystery rarely seen in the wild, and will – literally – run for the hills upon human encounters

(L-R) Edmea Pereira, 69, Elsa Rodrigues, 61, and Osmidio Conde, 71, take part in their surf class in Santos, Sao Paulo state, Brazil, March 16, 2016. When work is up, surf is up in Brazil, as a group of retired citizens take to the waves in keep-fit, keep-young sessions at a surf school in the city of Santos. The classes are run for free, three times a week at the Cisco Arana school, which aims to prove that age is just a number. (Photo by Nacho Doce/Reuters)

Richard Silver's photographs show us the world's biggest sights like Machu Picchu in Peru or Copacabana in Brazil. His photos, however, are not simply depictions of the landmarks but planned, artistic visual constructions that, with their playful combinations of sharpness and blur, create new worlds of experience. Photo: Coliseum, Rome. (Photo by Richard Silver)

Finding just the right spot above the clouds at Camp 1 on Ama Dablam, Danuru Sherpa uses his iPhone to catch up with friends and family. Even at 18,500 feet (5,654 meters), climbers here can check their email and other dispatches from the world below. (Photo by Aaron Huey/National Geographic)

Children watch their classmate pour cold water on herself under the watch of a fitness coach at a local kindergarten in Russia's Siberian city of Krasnoyarsk, March 11, 2015. The program, which also involves sports training and sauna usage, has been practiced by the kindergarten for more than 15 years as they believe it has health benefits and keeps the children fit. Children start pouring cold water on themselves outdoors after about three years of training and undergoing medical tests, and the kindergarten is the only one in the region that practices these exercises, according to employees. (Photo by Ilya Naymushin/Reuters)

A Hindu holy man, or sadhu, smokes marijuana in a chillum at the premises of Pashupatinath Temple, ahead of the Shivaratri festival in Kathmandu, Nepal February 15, 2017. (Photo by Navesh Chitrakar/Reuters)

Two holy men with a decorative faces and headdresses, taken in Kathmandu, Nepal. Wandering through the cities and forests of Nepal are the holy men, or Sadhus, who have left all materialistic pleasures behind to live a life devoted to God. Their appearances vary from brightly coloured face paints, and decorations, to minimalistic practical clothing, but they all represent the fundamental values and meanings of Hinduism. Danish photographer Jan Moeller Hansen visited the ancient capital city of Kathmandu between 2013 and 2016 and documented the mysterious holy wanderers. (Photo by Jan Moeller Hansen/Barcroft Images)

“Pieter Hugo was born 1976 and grew up in Cape Town, South Africa. He is a South African photographer who primarily works in portraiture and whose work engages with both documentary and art traditions with a focus on African communities. His most recognized work is the series called “The Hyena & Other Men” and which was published as a monograph. It has received a great deal of attention. Hugo won first prize in the Portraits section of the World Press Photo 2005 for a portrait of a man with a hyena”. – Wikipedia

Photo: Abdullahi Mohammed with Mainasara, Ogere-Remo, Nigeria 2007. (Photo by Pieter Hugo)