The year 2023 was full of colorful adventures and moments all around the globe.

National Geographic’s photographers captured many of them on camera, submitting their best photos for consideration in NatGeo's "Pictures of the Year."

Of the more than two million photos submitted by 165 photographers on assignment across the world, 29 shots were chosen as the most captivating images.

NATIONAL GEOGRAPHIC SPOTLIGHTS EXTRAORDINARY PHOTOGRAPHY AS ‘PICTURES OF THE YEAR’

Here are seven outstanding selections from NatGeo’s annual roundup.

Kiwi examination: Wellington, New Zealand

new zealand kiwi

Field specialists examine a North Island brown kiwi two months after 11 of the birds were released outside New Zealand’s capital. A national symbol, kiwis have been decimated by predators, especially stoats, introduced in the 1800s. (Photo by Robin Hammond)

Pig brain: Yale University, New Haven, Connecticut

yale university pig brain

To better study how cells from one region of the brain connect with cells in others, Yale researchers looked for a way to reanimate recently dead brain tissue. The team succeeded with a pig’s brain by combining a custom drug cocktail (blue) with an oxygen carrier (dark red).  (Photo by Max Aguilera-Hellweg)

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Aquatic expedition: Mount Michael, South Atlantic Ocean

expedition to mount michael

Volcanologists and mountaineers return after a weeks-long expedition to Mount Michael, a remote volcano in the South Sandwich Islands. The team made a successful first ascent and study of the peak, which holds one of Earth’s few lava lakes. (Photo by Renan Ozturk)

‘RING OF FIRE’ ECLIPSE: WHAT TO KNOW ABOUT THE RARE PHENOMENON HEADED TO THE US

Butterfly-drenched trees: Monarch Butterfly Biosphere Reserve, Mexico

butterflies in forest

Streaked with sunlight and crowded together for warmth in winter, monarch butterflies blanket fir trees in El Rosario Sanctuary. Photographer Rojo received special permits to work outside the sanctuary’s operating hours. He took this photograph shortly before sunset.  (Photo by Jaime Rojo)

TERRIFYING CLOSE-UP OF AN ANT'S FACE GIVES HORROR MOVIE MONSTERS A RUN FOR THEIR MONEY

Hyena pack at dawn: Masai Mara National Reserve, Kenya

hyenas

Soon after dawn at Lemek Conservancy, spotted hyenas arrive at a pond to drink. Widely misunderstood, hyenas are fierce, intelligent and social, living and hunting as members of matriarchal clans. Photographer Jen Guyton captured this closeup with an armored, remote-controlled robot designed by National Geographic photo engineers. (Photo by Jen Guyton)

ENDANGERED ZEBRA SHARK TO BE RELEASED BACK INTO OCEANS IN FIRST-EVER INTERNATIONAL ‘RE-WILDING’ EFFORT

Finnish and U.S. soldiers in training: Sodankyla, Finland

soldiers train in arctic circle

At a military facility north of the Arctic Circle, Finnish and U.S. soldiers train for winter warfare by navigating an obstacle course while on skis. The exercise took place two months before Finland — which shares an 800-mile border with Russia — joined NATO. The training was arranged in response to the war in Ukraine. (Photo by Louie Palu)

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Diving in toxic Lago Verde: Frasassi Caves, Italy

lago verde explorers

Caver Valentina Mariani (above), National Geographic Explorer Kenny Broad (center), and Nadir Quarta prepare for a dive into the dark, toxic waters of Lago Verde. Such sunlight-starved ecosystems could offer a glimpse into the chemistry of life in alien seas. (Photo by Carsten Peter)

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More of this year's "Pictures of the Year" can be found on National Geographic's website.

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