The winter in Sweden is long, dark and hard. But also incredibly beautiful. 

The dusky dolphin is one of the smaller dolphin species with a maximum weight of about 85 kilograms and a length, of just over two metres. The dusky dolphin is a social species, known for its agility and coordinated acrobatic abilities.

Bruny Island is a haven for rare and unique birds and animals, and is one of the best bird-watching spots in Australia.

The fairy tern is a similar size to a hooded plover - so tiny, it would sit comfortably in the palm of your hand. They lay just two eggs, onto the beach sand. See these remarkable images from Tasmanian-based bird ecologist Dr Eric Woehler.

Imagery from the life of Duco, a Brazilian environmentalist, nature and bird-guide who found redemption in nature

Kunanyi is shaped by ancient dolerite rock formations, sculpted over millions of years by ice, wind and rain. From towering cliffs to scattered boulders and caves, these photographers captures its beauty. 

Snow leopards, golden marmot, markhor, golden eagles, lynx, and other wildlife species frequent the extraordinary region of Chitral & Gilgit Baltistan in Northern Pakistan

Tasmania's marine environment is globally significant, with a rich mix of ecosystems and habitats fostering marine life found nowhere else on Earth

At twice the size of the Great Barrier Reef and more than three times the size of Great Britain, the waters around Christmas Island have been officially recognised as part of Australia’s Marine Parks. Photo: Rohan Newton

The two thousand-foot deep red sandstone canyon through Zion National Park is a majestic masterpiece, carved out over ancient time by the Virgin River. Known for its intense seasonal colours and dramatic vistas and established in 1919, Zion is Utah's first National Park.

Bryce Canyon National Park in southern Utah is home to the greatest collection of distinctive spire-shaped rock formations called hoodoos on Earth. Its super-ancient sediment layering dates back to the end of the Cretaceous period, more than 66 million years ago.

The wild and special continent of Antarctica - captured by outdoor educator and guide Ewan Blyth. 

Bryce Canyon National Park in southern Utah is home to the greatest collection of distinctive spire-shaped rock formations called hoodoos on Earth. Its super-ancient sediment layering dates back to the end of the Cretaceous period, more than 66 million years ago.

The triangle-shaped island of Panay is the sixth-largest of the Philippines archipelago, and has an amazing array of landscapes and biodiversity hotspots, including the Central Panay Mountain Range. As the fourth-most populous island of the Philippines, it is also facing conservation challenges.

Tasmania's marine environment is globally significant, with a rich mix of ecosystems and habitats fostering marine life found nowhere else on Earth

The aurora australis lights the skies of Southwest Tasmania. The next Dark Sky Sanctuary? Image: Dan Broun

Snow leopards, golden marmot, markhor, golden eagles, lynx, and other wildlife species frequent the extraordinary region of Chitral & Gilgit Baltistan in Northern Pakistan

The two thousand-foot deep red sandstone canyon through Zion National Park is a majestic masterpiece, carved out over ancient time by the Virgin River. Known for its intense seasonal colours and dramatic vistas and established in 1919, Zion is Utah's first National Park.

Mountains, valleys, alpine lakes and green pastures - the beauty of Chitral & Gilgit-Baltistan. 

Dozens of species of native animals frequent the remnant moist gullies and bushland of the Mosman peninsula, from the Eastern Water Dragon to Peron's Tree Frog and the endangered Powerful Owl

The Atlantic Forest is one of the most biodiverse forests in the world including almost 1000 bird species. Here are a few of these birds from photographer Marcio Conrado.

The wild and special continent of Antarctica - captured by outdoor educator and guide Ewan Blyth. 

Imagery from the life of Duco, a Brazilian environmentalist, nature and bird-guide who found redemption in nature

The fairy tern is a similar size to a hooded plover - so tiny, it would sit comfortably in the palm of your hand. They lay just two eggs, onto the beach sand. See these remarkable images from Tasmanian-based bird ecologist Dr Eric Woehler.