Meet the star students of orangutan school – the unique rehab centre where orphaned apes are taught how to climb trees and survive in the wild without their mum and dad. (Photo by Caters News)

A zoo keeper feeds Diego, a three month old howler monkey, which is reared at Edinburgh Zoo, July 29, 2008 in Scotland. (Photo by Jeff J. Mitchell/Getty Images)

Mr. Ben, a pygmy slow loris, is administed anesthetic during one of Bristol Zoo's in-house veterinary clinic routine health check-up and teeth clean as part of the Zoo's standard animal husbandry and welfare procedure at Bristol Zoo on June 18, 2009 in Bristol, England. (Photo by Matt Cardy/Getty Images)

The Queen Elizabeth Tower (Big Ben) is reflected in a puddle as a cyclist rides by in London, on 27 June 2016. Britain began preparations to leave the European Union on Monday but said it would not be rushed into a quick exit, as markets plunged in the wake of a seismic referendum despite attempts to calm jitters. (Photo by Leon Neal/AFP Photo)

Aerial view of Taxodium Distichum in full blossom at a maze area of a wetland park on January 6, 2023 in Xiamen, Fujian Province of China. (Photo by Wu Wei/VCG via Getty Images)

A row of abandoned oil tanks is filled with creepers on the riverside of Liyun River in Huai 'an, East China's Jiangsu Province, May 9, 2023. (Photo credit should read CFOTO/Future Publishing via Getty Images)

Fog hangs over the east of the capital on a frosty Sunday morning on January 12, 2025 in London, UK. (Photo by David Levene/The Guardian)