Metropolitan Transit Authority (MTA) Police Officer Keith Flood trains with his K-9 partner Doc, a German Shepherd, inside the “warehouse room” at the new MTA Police Department Canine Training Center in Stormville, New York, U.S., June 6, 2016. (Photo by Mike Segar/Reuters)

Devotees of TikTok, Mona Swain, center, and her sister, Rachel Swain, right, both of Atlanta, monitor voting at the Capitol in Washington, as the House passed a bill that would lead to a nationwide ban of the popular video app if its China-based owner doesn't sell, Wednesday, March 13, 2024. Lawmakers contend the app's owner, ByteDance, is beholden to the Chinese government, which could demand access to the data of TikTok's consumers in the U.S. (Photo by J. Scott Applewhite/AP Photo)

Women smeared with “Gulal” as they celebrate Holi, the Hindu spring festival of colours, in Kolkata on March 25, 2024. (Photo by Dibyangshu Sarkar/AFP Photo)

A woman picks marigold flowers used to make garlands and offer prayers, before selling them to the market for the Tihar festival, also called Diwali, in Kathmandu, Nepal on October 17, 2017. (Photo by Navesh Chitrakar/Reuters)

A street performer dressed up as a waiter performs for at Marques de Larios street in downtown Malaga, Spain, July 4, 2016. (Photo by Jon Nazca/Reuters)

The National Geographic Photo Ark is a travelling exhibition of photographer Joel Sartore’s quest to create a photo archive of biodiversity around the world. So far, Sartore has captured studio portraits of more than 6,000 species – a number that he hopes to double. On 1 July, the ark will open at Melbourne zoo – the first time it has been exhibited in the southern hemisphere. More than 50 portraits will be on display, including many of Australian endangered animals being protected by programs at the zoo itself. These captions have been edited from text supplied by Melbourne zoo. Here: Barking owl. (Photo by Joel Sartore/National Geographic Photo Ark/The Guardian)

People walk along the Neva River at sunset in St.Petersburg, Russia, Tuesday, December 6, 2016. The temperature in St.Petersburg is –9C ( 15.8 °F). (Photo by Dmitri Lovetsky/AP Photo)

An attendee makes a video with the new iPhone 16 Pro as Apple holds an event at the Steve Jobs Theater on its campus in Cupertino, California on September 9, 2024. (Photo by Manuel Orbegozo/Reuters)