Portuguese runner Adriele Silva gestures during the Great Wall Marathon at the Huangyaguan section of the Great Wall of China, in Jixian of Tianjin, China May 19, 2018. (Photo by Jason Lee/Reuters)

Runners sleep before competing in the 2016 New York City Marathon in the Manhattan borough of New York City, NY, U.S. November 6, 2016. (Photo by Eduardo Munoz/Reuters)

The British Ecological Society has announced the winners of its annual photography competition, Capturing Ecology. Taken by international ecologists and students, the winning images will be exhibited at the society’s joint annual meeting in Ghent in December. Here: Overall runner-up; Toucan, Mark Tatchell. (Photo by Mark Tatchell/British Ecological Society)

In this Sunday, August 5, 2012 file photo South Africa's Oscar Pistorius starts in the men's semi-finals of the 400-meter in the Olympic Stadium at the 2012 Summer Olympics, London. Pistorius could be granted parole on Friday, Nov. 24, 2023 after nearly 10 years in prison for killing his girlfriend. The double-amputee Olympic runner was convicted of a charge comparable to third-degree murder for shooting Reeva Steenkamp in his home in 2013. He has been in prison since late 2014. (Photo by Anja Niedringhaus/AP Photo)

An unidentified runner gestures while being attended by medical services following the first running of the bulls of the San Fermin festival in Pamplona, northern Spain, July 7, 2015. Two runners were gored in the run that lasted 2 minutes and 23 seconds, according to local media. (Photo by Eloy Alonso/Reuters)

Some runners fall during the “El Pilon” running-the-bulls in the village of Falces, Navarra, northern Spain, 16 August 2022. “El Pilon” running-the-bulls is held on a hill where runners have to avoid the herd of cows on a 800 meter long and narrow slope with the mountain on one side and a steep cliff on the other. (Photo by Peio H/EPA/EFE)

A runner takes part in the International World's coldest marathon at minus 53 degrees (–63.4 Fahrenheit) near Oymyakon, the republic of Sakha, also known as Yakutia, Russian Far East, Saturday, January 22, 2022. Sixty five runners, including athletes from the United Arab Emirates, United States and Belarus, started the run at extremely low temperature in Oymyakon, Yakutia's Pole of Cold. The international team of men and women ran full distance and half-marathon. (Photo by Ivan Nikiforov/AP Photo)

“As you can see I love the Icelandic Horse. Born and raised with them, I love to work with them and watch them ... they have unbelievable network of communication and energy I can´t explain with words”. – Gigja Einarsdottir. Photo: “Runners”. (Photo by Gigja Einarsdottir)