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

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.

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.

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 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.

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

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

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 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.

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

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.

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

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

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.

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

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

The dramatic-looking rockhopper penguin is characterised by its red eyes, upright yellow head feathers along a supercilium stripe and a crest of black feathers on top. They are separated into three sub-species, photographer here by ecologist Dr Eric Woehler (OAM) and located around the Antarctic and sub-Antarctic zones.

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

Bruny Island is an island, off an island, off an island, surrounded by islands. Image: Nick Monk

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

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

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.