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.

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

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

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.

Pelagic birds are birds that spend a large part of their life on the open ocean. These include the majestic Albatross, petrels and terns. This gallery of Pelagic birds by Marcio Conrado was taken off the Tasman Peninsula

Antartica, the Southern Ocean and the sub-Antarctic islands host a rich variety of extraordinary life, including penguins, seals, and whales

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. 

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

The diverse avifauna of Chitral and Gilgit-Baltistan, Pakistan, includes, but not limited to a fascinating array of species locally known by distinct names that reflect the region’s cultural and ecological identity. 

Bruny Island has an intricate, complex, beautiful and varied coastline, ranging from sheltered inlets, shallow bays, mudflats, lagoons, and grand sea-cliffs, through to long sandy ocean facing beaches.

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.

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

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.

Pelagic birds are birds that spend a large part of their life on the open ocean. These include the majestic Albatross, petrels and terns. This gallery of Pelagic birds by Marcio Conrado was taken off the Tasman Peninsula

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

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

Takayna / Tarkine is a hugely diverse wild landscape with an extraordinary history. Largely unprotected this region has huge potential for national park and world heritage status.

Bruny Island has an intricate, complex, beautiful and varied coastline, ranging from sheltered inlets, shallow bays, mudflats, lagoons, and grand sea-cliffs, through to long sandy ocean facing beaches.

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

Southwest National Park in Tasmania is a vast, mostly trackless wilderness containing ancient forests, the wildest rivers, a glaciated and mountainous landscape and a spectacular coastline with rich aboriginal history.

Black Bluff and Winterbrook are two jewels on the north coast of Tasmania. 

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