A wave carrying plastic waste and other rubbish washes up on a beach in Koh Samui in the Gulf of Thailand on January 19, 2021. (Photo by Mladen Antonov/AFP Photo)

A group of Maasai women march while dancing traditional songs during a Maasai cultural festival in Sekenani, on June 10, 2023. The Maasai people are a Nilotic ethnic group inhabiting Kenya and northern Tanzania. The Maasai cultural festival is a popular gathering and celebration of the Maasai cultural heritage and aims to showcase the community's traditional activities and fashion. (Photo by Luis Tato/AFP Photo)

A visitor wears an outfit as she watches the St. George NextGen show for Fashion Week in Sydney on May 16, 2017. (Photo by Peter Parks/AFP Photo)

A Philippine boy collects used plastic bottles to be sold at a junk shop at Divisoria market in Manila on November 29, 2017. (Photo by Noel Celis/AFP Photo)

A combination of high tide and strong winds in the coastal city of Saint-Malo, France, resulted in waves as high as apartment blocks on Friday, March 24, 2023. Waves 50 foot (15,24 m) high flooded the streets as they breached sea walls. (Photo by Mathieu Rivrin/Solent News & Photo Agency)

A girl plays at the West Side Hallo Fest, a Halloween festival in Bucharest, Romania, Friday, October 27, 2023. Tens of thousands streamed last weekend to Bucharest's Angels' Island peninsula for what was the biggest Halloween festival in the Eastern European nation since the fall of Communism. (Photo by Vadim Ghirda/AP Photo)

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)

Supporters of presidential candidate Gustavo Petro, with the Historical Pact coalition, celebrate after his candidate won a presidential runoff in Bogota, Colombia, Sunday, June 19, 2022. (Photo by Fernando Vergara/AP Photo)