Martin Willis / Spinifex Grass (Spinifex sp) in desert, Kata Tjuta, Australia

Colin Monteath/ Hedgehog House / Spinifex Grass (Spinifex sp) on sand dune with footprints, Simpson Desert, Northern Territory, Australia

Martin Willis / Spinifex Grass (Spinifex sp) in desert, Kata Tjuta, Australia

Eric Sohn Joo Tan/ BIA / Spinifex Pigeon (Geophaps plumifera) calling, Queensland, Australia

Eric Sohn Joo Tan/ BIA / Spinifex Pigeon (Geophaps plumifera), Queensland, Australia

Rob Drummond/ BIA / Spinifex Pigeon (Geophaps plumifera) displaying, Northern Territory, Australia

MYN / Lily Kumpe / Spinifex Polichne Katydid (Polichne sp) William Bay National Park, Western Australia. Meetyourneighbours.net project.

Martin Willis / Hairy Spinifex (Spinifex hirsutus) grassland, Kimberley, Western Australia, Australia

Martin Willis / Northern Quoll (Dasyurus hallucatus), among granite rocks in Spinifex grass habitat, Mitchell Plateau, Kimberley, Western Australia, Australia

Greg Oakley / Spinifex Pigeon (Geophaps plumifera), Northern Territory, Australia

Martin Willis / Spinifex Pigeon (Geophaps plumifera), Georgetown, Queensland, Australia

D. Parer & E. Parer-Cook / Rufous Hare-wallaby (Lagorchestes hirsutus) on red sand by Spinifex grass at night, Tanami Desert, Northern Territory, Australia

D. Parer & E. Parer-Cook / Spinifex Hopping Mouse (Notomys alexis) emerges at dusk from burrow that may be a meter below surface, central Australia

Martin Willis / Spinifex Pigeon (Geophaps plumifera), Macdonnell Range, Northern Territory, Australia

Martin Willis / Spinifex Pigeon (Geophaps plumifera) sunbathing, Macdonnell Range, Northern Territory, Australia

Martin Willis / Spinifex Pigeon (Geophaps plumifera) pair sunbathing, Macdonnell Range, Northern Territory, Australia

Chien Lee / Spinifex Grass (Spinifex sp) above rock gorges, Karijini National Park, Western Australia, Australia

Chien Lee / Spinifex Pigeon (Geophaps plumifera) pair, Western Australia, Australia

Theo Allofs / Spinifex Pigeon (Geophaps plumifera) portrait, Australia

Thomas Marent / Spinifex Pigeon (Geophaps plumifera), Alice Springs, Australia

Thomas Marent / Spinifex Pigeon (Geophaps plumifera) pair, Alice Springs, Australia

Gerry Ellis / Spinifex Grass (Spinifex sp) and stone garden in Geike Gorge National Park, Western Australia

Gerry Ellis / Spinifex Grass (Spinifex sp) growing in desert, arid western and central Australia

Martin Willis / Spinifex Pigeon (Geophaps plumifera), Queensland, Australia

Rob Drummond/ BIA / Spinifex-bird (Eremiornis carteri), Northern Territory, Australia

Greg Oakley/ BIA / Spinifex Pigeon (Geophaps plumifera), Northern Territory, Australia

Theo Allofs / Polar Bear (Ursus maritimus) in snow, Svalbard, Norway

Chien Lee / Spinifex Pigeon (Geophaps plumifera) foraging, Western Australia, Australia

Juergen Freund / Aerial tracking shot of Spinifex (Spinifex sp.) grass covered red desert sand dunes, Australian Outback, South-West Queensland, Australia.

Juergen Freund / Aerial tracking shot of Spinifex (Spinifex sp.) grass covered red desert sand dunes. The drone ascends from low level. Australian Outback, South-West Queensland, Australia.

Juergen Freund / Aerial tracking shot of Spinifex (Spinifex sp.) grass covered red desert sand dunes, Australian Outback, South-West Queensland, Australia.

Jiri Lochman / Sandy inland mouse (Pseudomys hermannsburgensis) balancing among Spinifex grass (Triodia sp.) stems and feeding on seeds, Little Sandy Desert, Western Australia.

Jiri Lochman / Sandy inland mouse (Pseudomys hermannsburgensis) balancing among Spinifex grass (Triodia sp.) stems and feeding on seeds, Little Sandy Desert, Western Australia.

Jiri Lochman / Sandy inland mouse (Pseudomys hermannsburgensis) balancing among Spinifex grass (Triodia sp.) stems and feeding on seeds, Little Sandy Desert, Western Australia.

Bruce Thomson / Aerial shot over desert, with Spinifex grass (Spinifex sp.) and Gidgee (Acacia cambagei) trees on sand dunes, Australia. The landform of horizontally bedded alluvium occurs with tracks of dinosaurs.