David Hall’s photographs of scenery and creatures off the coast of Canada in the Pacific Northwest portray serenity under the water, which belie the extreme challenges he faces to get his images. For each shoot, Hall wears a dry suit, a neoprene body suit that covers all of his body but his head and traps air inside to keep him warm. Water temperature in Canada’s British Columbia typically ranges between 45 and 50 degrees Fahrenheit. Photo: Moon jellyfish and cross jellies. (Photo by David Hall)

“Sniff out the Appenzell Cheese”. Alexander Hunter, 30, of Greenwich, Conn., took this photo in Appenzell, Switzerland, in September 2014. (Photo by Alexander Hunter)

Police gesture in respect towards a monk as they block protesters trying to march to the Asia-Pacific Economic Cooperation APEC summit venue, Friday, November 18, 2022, in Bangkok, Thailand. (Photo by Wason Wanichakorn/AP Photo)

A tourist visits an ocean park during the International Day for Biological Diversity on May 22, 2024 in Handan, Hebei Province of China. May 22 marks the 24th International Day for Biological Diversity. (Photo by Hao Qunying/VCG via Getty Images)

A participant wearing costumes takes part in the Pride Parade in Bangkok, Thailand, Saturday, June 1, 2024. Thailand is kicking off its celebration for the LGBTQ+ community's Pride Month with a parade on Saturday, as the country is on the course to become the first nation in Southeast Asia to legalize marriage equality. (Photo by Sakchai Lalit/AP Photo)

A curious leopard cub toys with a camera at MalaMala Game Reserve in Mpumalanga Province, South Africa. (Photo by Barcroft Media)

Members of a Chinese opera take a selfie before a performance at a shopping mall ahead of the Chinese Lunar New Year celebrations in Bangkok, Thailand, February 4, 2016. (Photo by Athit Perawongmetha/Reuters)

A couple have taken their love of animals to the extreme – by opening up their home to over 100 rescued animals. Dr Prakash Amte and his wife, Dr. Mandakini Amte have dedicated their lives to helping both the animals – and people – of Hemalkasa, Maharashtra in India. Here: Prakash Amte is seen playing with a Hyena from his orphanage on September 19, 2017 in Maharashtra, India. (Photo by Haziq Qadri/Barcroft Media)