A policeman jumps as he tried to avoid a tear gas grenade thrown back towards police by protesters in the Mathare neighborhood of Nairobi, Kenya Wednesday, July 12, 2023. Kenyans angered by the rising cost of living were back protesting on the streets of the capital, Nairobi, on Wednesday, as they awaited a speech by a longtime opposition leader. (Photo by AP Photo/Stringer)

Heralds ride on horse-back through the streets of Moscow proclaiming the forthcoming coronation of Tsar Nicholas II, 1896. P.S. All pictures are presented in high resolution.

Children ride on the back of a truck at a camp for internally displaced people (IDPs) in Marib, Yemen on September 9, 2021. (Photo by Ali Owidha/Reuters)

A starling jealously guards a seed station in the back garden of the photographer’s Michigan home in January 2024. (Photo by Lisa Cavanary/Solent News)

Tank Chair is a custom off-road wheelchair that can go anywhere outdoors. Tank Chair conquers streams, mud, snow, sand, and gravel, allowing you to get back to nature. Using rubber tracks and high-torque electric motors, Tank Chair will take you anywhere and back.

A Pakistani labourer carries bricks on his back at a construction site at a residential area in Islamabad on March 29, 2017. (Photo by Aamir Qureshi/AFP Photo)

A man sits at the back of his car in the city centre of Yangon on September 15, 2023. (Photo by Sai Aung Main/AFP Photo)

An elephant enjoys its back being scrubbed by the keeper on March 1, 1950. (Photo by Fox Photos/Getty Images)