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)

A leopard seal feeds Paul Nicklen a penguin. (Photo by Paul Nicklen/National Geographic). Antarctic Peninsula, 2011

A woman visits oil on canvas paintings by Ayesha Sultana of the Experimenter gallery in 14th edition of Art Dubai at Dubai International Financial Centre, DIFC, which features 50 galleries from 31 countries with a focus on modern and contemporary art, in Dubai, United Arab Emirates, Tuesday, March 30, 2021. (Photo by Kamran Jebreili/AP Photo)

A man demonstrates outside Republican presidential candidate Donald Trump's news conference at Trump Tower in New York, U.S., May 31, 2016. (Photo by Shannon Stapleton/Reuters)

This photo released Saturday March 22, 2014 by Stichting Ambulance Wens or Ambulance Wish Foundation shows a giraffe at Blijdorp Zoo in Rotterdam giving a lick to terminally ill Mario Eijs on Wednesday March 19, 2014. The Stichting Ambulancewens “Ambulance Wish Foundation” offers transport for terminally ill patients who cannot walk to help fulfill a last wish, in Eijs' case to be taken to the Blijdorp Zoo in Rotterdam where he worked doing odd jobs for 25 years. Eijs, who has a mental handicap, is dying of a brain tumor and has difficulty walking or speaking. (Photo by AP Photo/Stichting Ambulance Wens)

A parakeets lands on a woman's head at St James' Park in London, United Kingdom on February 9, 2021. London has been experiencing snow as the Storm Darcy hits the city. (Photo by Brett Cove/SOPA Images/Sipa USA)

An elephant cools off at a zoo in Karachi, Pakistan, 31 March 2021. Caretakers at Karachi's zoo were working to keep animals cool during a​ heatwave affecting southern Pakistan. (Photo by Shahzaib Akber/EPA/EFE)

Yoga enthusiasts perform a yoga exercise in a wine yoga class inside “Van Gogh: The Immersive Experience”, a multi-sensorial exhibition featuring artworks of renowned artist Vincent van Gogh at a department store in Bangkok, Thailand, August 5, 2023. (Photo by Athit Perawongmetha/Reuters)