Ingo Arndt / Green tree ant (Oecophylla smaragdina) group on entrance from nest, built from woven leaves, Northern Territory, Kakadu National Park, Australia.

Ingo Arndt / Intermediate Egret (Egretta intermedia) Kakadu National Park, Northern Territory, Australia, December

Ingo Arndt / Aboriginal Rock Art / depicting human figure / Anbangbang Gallery / Nourlangie Range / Kakadu National Park, Northern Territory, Australia

Ingo Arndt / Floodplain with Pandanus palms under storm clouds, Kakadu National Park, Northern Territory, Australia, December 2010

Andy Rouse / Dingo (Canis lupus dingo) Kakadu National Park, North West Territories, Australia

Jouan & Rius / Aboriginal rock art, Anbangbang Gallery, Nourlangie Ranges, Kakadu National Park, Northern Territory, Australia

Jouan & Rius / Misty morning along Yellow Water, South Alligator River floodplain, Kakadu National Park, Northern Territory, Australia

Jouan & Rius / Aboriginal rock art showing sailing boat, Nanguluwur Gallery, Nourlangie Ranges, Kakadu National Park, Northern Territory, Australia

Jouan & Rius / Paperbark gum trees (Melaleuca sp) growing along Yellow Water, South Alligator River floodplain, Kakadu National Park, Northern Territory, Australia

Tony Heald / 'Cool burn' fire, canopy is unaffected, Kakadu NP, Northern Territory, Australia

Steven David Miller / Nadab floodplain gives way to Arnhemland, view from Nadab Lookout, Ubirr, Kakadu National Park, Northern Territory, Australia. 2014.

Steven David Miller / People swimming in freshwater pools on Waterfall Creek, at the top of Gunlom Falls. Mary River, Kakadu National Park, Northern Territory, Australia. March 2014.