A couple walk in the Retiro park in Madrid on November 17, 2020 as a thick fog falls on the Spanish capital. (Photo by Gabriel Bouys/AFP Photo)

A young woman jumps into the river Rhine to cool off during high temperatures, near Kaiserstuhl, Switzerland, Sunday, June 22, 2025. (Photo by Michael Buholzer/Keystone via AP Photo)

A boat is stranded on Poyang Lake in Lushan City, China during low-water season on November 3, 2016. (Photo by Xinhua/Barcroft Images)

Hindu married women offer prayers and tie a thread around a banyan tree during the festival of Vat Purnima amid the spread of the coronavirus disease (COVID-19), in Mumbai, India, June 24, 2021. (Photo by Francis Mascarenhas/Reuters)

Buyan, a male Siberian brown bear, cools down under a stream of water sprayed by an employee in an enclosure on a hot summer day, at the Royev Ruchey zoo in Krasnoyarsk, Russia on June 14, 2019. (Photo by Ilya Naymushin/Reuters)

Ocean Rebellion activists dressed as Merpeople protest against bottom trawling during a demonstration ahead of the COP26 summit, in Glasgow, Scotland Britain, October 30, 2021. (Photo by Dylan Martinez/Reuters)

Drag queen Courtney Act (real name Shane Jenek) attends the Celebrity Big Brother male contestants launch night at Elstree Studios on January 5, 2018 in Borehamwood, England. The drag queen was left over-exposed on last show after her outfit apparently fell off. (Photo by Mike Marsland/WireImage)

Two horses appear to burst into laughter before a sweet embrace. The horses both turn their head to look at the camera and flash their teeth, treating the lucky photographer to a rare shot. Moments later the pair show their affectionate side by coming together and “hugging”. Photographer Nir Amos, 34, said he was “amazed” to capture the horses “laughing” in a field near Skógar, in the south east of Iceland on July 31, 2018. (Photo by Nir Amos/Solent News & Photo Agency)