Thomas Thwaites, a 34-year-old researcher from London, has spent the past year creating prosthetics that allow him to roam around on all fours like goat.

Horses are seen before they are evacuated from a ranch as a wildfire is burning along a hillside in Azusa, Calif., Monday, June 20, 2016. New wildfires erupted Monday near Los Angeles and chased people from their suburban homes as an intense heatwave stretching from the West Coast to New Mexico blistered the region. (Photo by Ringo H.W. Chiu/AP Photo)

Take me away, deer, Russia. The Nenet people of Arctic Russia use reindeer and sledges as a prime mode of transport. The animals’ navigational ability means that in severe conditions they are sometimes the only hope of survival. (Photo by Kamil Nureev/Smithsonian Photo Contest)

A woman crosses the street on a foggy morning in Frankfurt, Germany, Friday, October 29, 2021. (Photo by Michael Probst/AP Photo)

People celebrate the start of the New Year as fireworks illuminate Copacabana Beach in Rio de Janeiro, Brazil, early Monday, January 1, 2024. (Photo by Bruna Prado/AP Photo)

A woman poses for a friend next to blossoming trees in the A.V. Fomin Botanical Garden, in Kyiv, Ukraine, Wednesday, April 10, 2024. (Photo by Vadim Ghirda/AP Photo)

English television personality Georgia Harrison is seen attending House of CB Christmas Party at Old Sessions House on November 29, 2023 in London, England. (Photo by Ricky Vigil M/Justin E Palmer/GC Images)

A visitor to The Brooklands Double Twelve Motorsport Festival admires a 1914 Morgan Three Wheeler in front of a Hawker P1127 prototype jet aircraft on June 18, 2011 in Weybridge, England. Two hundred vintage cars are competing in various races, tests and speed trials over the two day event held at the Brooklands Museum. Brooklands was the world's first purpose-built, permanent motorsport venue that opened in 1907. (Photo by Peter Macdiarmid/Getty Images)