Ann & Steve Toon / Nyala (Tragelaphus angasii), female with young drinking, Mkhuze Game Reserve, KwaZulu-Natal, South Africa, May

Wild Wonders of Europe / Oxford / Sand dunes encroaching on Pine trees (Pinus sp) with Marram grass (Ammophila arenaria) growing n dunes, Doana National & Natural Park, Huelva Province, Andalusia, Spain, May 2009

Piotr Naskrecki / Sand Wasp (Ammophila sp) carrying paralyzed caterpillar, on which she will lay her eggs in an underground burrow, Gorongosa National Park, Mozambique

John Abbott / Thread-waisted wasp (Ammophila sp.) Orange County, Florida, USA September

John Abbott / Thread-waisted wasp (Ammophila sp.) taking off, Travis County, Texas, USA. Controlled conditions. March

John Abbott / Thread-waisted wasp (Ammophila sp.) taking off, Travis County, Texas, USA. Controlled conditions. March

David Woodfall / Marram grass (Ammophila arenaria) and lyme grass (Elymus sp) washed by exceptionally high spring tide, Steart Marshes Wildfowl and Wetland Trust, Somerset, UK. The Environment Agency and the WWT has...

John Abbott / Threadwaisted Wasp (Ammophila sp.) Stine Cove, Lake Isabella, near Porterville, Kern County, California, USA, June.

Nick Upton / Sheep's bit / Sheep's bit scabious (Jasione montana) flowering on a stable coastal sand dune among Marram grass (Ammophila arenaria), Gower Peninsula, Wales, UK, July.

Nick Upton / Sheep's bit / Sheep's bit scabious (Jasione montana) flowering on a stable coastal sand dune among Marram grass (Ammophila arenaria), Gower Peninsula, Wales, UK, July.

Nick Upton / Sheep's bit / Sheep's bit scabious (Jasione montana) flowering on a stable coastal sand dune among Marram grass (Ammophila arenaria), Gower Peninsula, Wales, UK, July.

Alex Hyde / Sand wasp (Ammophila sp) female with a caterpillar that has been stung and paralysed, Midi-Pyrenees, France, August.

Nick Garbutt / Fox-tail Grass (Alopecurus sp) in flower, blowing in the breeze, Shores of Hudson Bay, Manitoba, Canada, late September

Wild Wonders of Europe / Oxford / Sand dunes encroaching on Pine trees (Pinus sp) with Marram grass (Ammophila arenaria) growing on dunes, Doñana National & Natural Park, Huelva Province, Andalusia, Spain, May 2009

Harley Betts / European Beachgrass (Ammophila arenaria) topped dune with rippled sand, Farewell Spit, Golden Bay, New Zealand

Colin Monteath / European Beachgrass (Ammophila arenaria) and Pingao Grass (Desmoschoenus spiralis), Mason Bay Sand Dunes, Rakiura National Park, Stewart Island, New Zealand

Colin Monteath / European Beachgrass (Ammophila arenaria) and Pingao Grass (Desmoschoenus spiralis) with hiker in Mason Bay Sand Dunes, Rakiura National Park, Stewart Island, New Zealand

Jiri Lochman / Club wasp (Ammophila sp.) female, transporting a moth caterpillar (Antimima cryptica) into its underground nest chamber where it will serve as food for wasp larvae, Yardanogo Nature Reserve, south-eas...

Jiri Lochman / Club wasp (Ammophila sp.) female, transporting a moth caterpillar (Antimima cryptica) into its underground nest chamber where it will serve as food for wasp larvae, Yardanogo Nature Reserve, south-eas...

Jiri Lochman / Club wasp (Ammophila sp.) female, carrying sand removed when excavating underground nest chamber, Yanchep National Park, north of Perth, Western Australia.

Jiri Lochman / Club wasp (Ammophila sp.) female, excavating underground nest chamber in sand, Yanchep National Park, north of Perth, Western Australia.

Andy Sands / Pair of Kite-tailed robberfly (Machimus atricapillus) mating on Marram grass (Ammophila sp) in sand dunes. Cornwall, England, UK. July.

Jussi Murtosaari / Thread-waisted wasp (Ammophila sp) with caterpillar prey. Liperi, Finland. July.