Wim van den Heever / Ancient dead Camelthorn trees (Vachellia erioloba) at night with red dunes behind. Namib desert, Sossusvlei, Namibia. Composite.

Wim van den Heever / Ancient dead Camelthorn trees (Vachellia erioloba) with sand dunes, Namib desert, Deadvlei, Sossusvlei, Namibia.

Wim van den Heever / Ancient dead Camelthorn trees (Vachellia erioloba) with sand dunes, Namib desert, Deadvlei, Sossusvlei, Namibia.

Pascal Pittorino / Mimosa (Acacia dealbata) flowers covered in snow , Var, Provence, France, February

Pal Hermansen / Sprouting Soy beans (Glycine max) against white background

Nick Upton / Pollen and nectar flower mix strip with Mustard (Brassicaceae), Common sainfoin (Onobrychis viciifolia) and Red clover (Trifolium pratense) bordering a Barley crop (Hordeum vulgare), Marlborough Downs...

Pal Hermansen / Meadow vetchling (Lathyrus pratensis) and brambles (Rubus) growing on the dashboard of the abandoned car in 'car graveyard' Bastnas, Sweden, July

Pat Tuson / Wild Perennial Lupin (Lupinus perennis) Gillespie Park Local Nature Reserve an urban ecology park with tower blocks in background, Highbury, London Borough of Islington, England UK

Michael & Patricia Fogden / White-necked Jacobin (Florisuga mellivora) hummingbird male feeding on nectar of Fairy Duster (Calliandra sp) flower in cloud forest, Tandayapa Valley, western slope of Andes, Ecuador

Tim Fitzharris / Paradise Meadow and Mount Rainier, Mount Rainier National Park, Washington

Stephen Belcher / Camelthorn Acacia (Acacia erioloba) dead tree with dunes in background, Namib-Naukluft National Park, Namibia

Michael Durham / Honey Bee (Apis mellifera) worker collecting nectar from Red Clover (Trifolium pratense) flowers, note the pollen baskets on the legs, northwest Oregon