An Arctic Tern in front of the Monaco glacier in Liefdefjorden, at the northwest tip of Svalbard in the high Arctic.

The beautiful and tiny 113-gram Arctic Tern is a super impressive bird! Each year, it makes the longest migration of any animal in the world, traveling between breeding sites in the northern Arctic and survival/moult areas in the Antarctic pack‐ice zone. That practically means flying from the North Pole to the South Pole and back – each year! Miniature transmitters have revealed that they follow zigzagging routes and rack up to 71,000 kilometres annually!

Arnfinn Johansen is a wildlife photographer based in Norway. He is a member of the Norwegian Nature Photographers Association and the founder of Oltepesi Tented Safari Camp / oltepesi com – a specialised camp for wildlife photographers in the Maasai Mara Kenya. Arnfinn’s work has been recognised in numerous international competitions and is widely displayed in exhibitions and publications.

Follow Arnfinn on Instagram @arnfinn_johansen. You can learn more about Arnfinn's work at Oltepesi.com

The flooded cave systems in Yucatan, Mexico carry the clean fresh water that sustain all life in the peninsula.

Martin Broen is an award-winning photographer and proficient technical diver that leverages his design sensibility as creator of experiences to craft one-of-a-kind images that encapsulate the beauty of the planet and its inhabitants, aiming to inspire awareness and foster conservation efforts. 

Follow Martin on Instagram @m.broen.

This is Rajan. He is a 66-year-old Asian elephant brought to the Andaman Islands for logging in the 1950s. He and a small group of 10 elephants were forced to learn how to swim in the ocean to help bring the logged trees to nearby barges and then eventually swim onto the next island.

When logging became banned in 2002, Rajan was out of a job. He spent the rest of his days living out an idyllic elephant retirement on one of the islands he helped log. I photographed him and his Majout (caretaker) named Nazroo who had been together for 30yrs and documented Rajan spending time sunbathing on the beach, swimming in the ocean and foraging in the forest. Rajan was the last of the group to survive until his death in 2016. He was truly the last of his kind.

This image is from the artist series "The Last of His Kind”.

An award-winning photographer, Jody MacDonald is no stranger to adventure and exploration in the last untamed corners of the planet. 

Follow Jody MacDonald on Instagram @jodymacdonaldphoto

A manatee and her calf laze in seagrasses that were replanted in Florida's Crystal River as part of an ongoing restoration project. While pollution and other environmental stressors are wiping out the seagrasses that manatees and other wildlife depend on for food and shelter around the world, this restoration project provides hope that the problems are fixable.

Jason Gulley is a geology professor and photographer who is passionate about documenting water, climate and environmental subjects. He is an avid caver and technical diving instructor and much of his photography and research are expedition-based. He lives in Tampa, Florida.

Follow Jason on Instagram @jason_gulley_science.

King penguins (Aptenodytes patagonicus) interact on the beach on South Georgia Island’s St. Andrews Bay; Southern Ocean; Antarctic Convergance; South Georgia Island.

Yva Momatiuk and John Eastcott, a wife and husband team, are internationally published photographers of nature. They practice long commitments to places they love and spend most of the year following animals, ever-changing landscapes, and moving with the light and the seasons while exploring the rhythm and wild essence of remote places.