This huge male orangutan is having a right old laugh as he squints his eyes and shows his huge teeth. The orangutan, called Bimbo, was relaxing on a platform around 5m high in his enclosure when he broke out into a laugh. But his happy smile soon disappeared when another orangutan came over to see what was going on. Bimbo – the only male in the group of five apes at Leipzig Zoo, in Germany - appears to be laughing in much the same way as a human would. (Photo by Martina Radtke/Solent News)

A robot named Nia from Beijing Qingfei Technologies Co. Ltd greets visitors to the Zhongguancun Forum at the Zhongguancun International Innovation Center in Beijing, China, Friday, March 28, 2025. (Photo by Ng Han Guan/AP Photo)

Team Jayco Alula's Dutch rider Dylan Groenewegen (L) and Soudal Quick-Step's Belgian rider Tim Merlier (2ndL) crash at the end of the first stage of the Renewi Tour multi-stage cycling race, from Riemst to Bilzen (163,6 km) on August 28, 2024. The five-day race takes place in Belgium and the Netherlands. (Photo by David Pintens/Belga via AFP Photo)

“Hydrocynus goliath, also known as the goliath tigerfish, giant tigerfish or mbenga, is a very large African predatory freshwater fish. The giant tigerfish is restricted to the Zaire River system, Lualaba River, Lake Upemba and Lake Tanganyika”. (Photo by Tigerfishcamp / Tourettefishing / Bigfishesoftheworld)

Vladimir Putin shows a hold to a young judo wrestler at the Regional Judo Center at the Arena Sports Complex in the Siberian city of Kemerovo on January 24, 2012, during his visit to the region. Putin is known for his passion for judo, in which he has a black belt. (Photo by AFP Photo/STR)

Japanese chorus girls appear to be drilling in military tactics atop their theater building as they perform salutes, June 30, 1937. The officer is from the Japanese regular army and says the girls display more rhythm in their drills than do the regular troops. (Photo by AP Photo)

Bangladeshi artists wear floral attire as they join celebrations of the spring festival “Basanta Utsav” at the Faculty of Fine Arts of the University of Dhaka, in Bangladesh, 14 February 2024. The Bashanta Utshab, or Spring Festival, is a local traditional festival which marks the beginning of the Spring Season while young people also celebrate it along with Valentine's Day. (Photo by Monirul Alam/EPA/EFE)

Britain's Alice Kinsella competes in the balance beam event of the artistic gymnastics women's qualification during the Paris 2024 Olympic Games at the Bercy Arena in Paris, on July 28, 2024. (Photo by Gabriel Bouys/AFP Photo)