The Rio Tinto river in Spain crosses an ancient mining site which makes the water turn a variety of bright colours. Copper, silver and gold are mined here, as well as iron, which turns the water red. An ochre mix is responsible for the yellow tint of the rest of the river. (Photo by Olivier Jarry-Lancombe/Solent News)

A young sloth named Gloria, that was rescued after being stolen from the wild destined for trafficking, peeks out of the box it is being taken to be released at the city's Botanical Garden in Rio de Janeiro, Brazil, Monday, March 13, 2023. Gloria was cared for by the Free Life Institute NGO that rehabilitates injured wildlife found in the surrounding Rio area and returns them, when possible, back to the wild. Those that are too injured to be released are sent to other rehab centers or sanctuaries to live out their lives in protected environments. (Photo by Bruna Prado/AP Photo)

Vendors wait for customers at a wholesale vegetable market in Dhaka on September 4, 2022. (Photo by Munir Uz Zaman/AFP Photo)

People cross the street in central Pyongyang, North Korea May 4, 2016. (Photo by Damir Sagolj/Reuters)

Police officers display their AI-powered smart glasses in Luoyang, Henan province, China on April 4, 2018. (Photo by Reuters/China Stringer Network)