Phil Savoie / Smeathman's furrow bee (Lasioglossum smeathmanellum), feeding on wild alpine strawberry (Fragaria vesca), Monmouthshire, Wales, UK. December

Guy Edwardes / Close up of a sunflower (Helianthus annuus) head, Provence, France.

Guy Edwardes / Close up of a sunflower (Helianthus annuus) head, Provence, France.

Alex Hyde / Fragrant Orchid (Gymnadenia conopsea) and Yellow Rattle (Rhinanthus sp.) flowering in ancient alpine hay meadow. Nordtirol, Austrian Alps. June.

Melvin Grey / Violet-tailed sylph hummingbird (Aglaiocercus coelestis) hummingbird adult male, approaching flower to feed, Tandayapa, Ecuador

Sven Zacek / Hepatica (Hepatica nobilis) white morph and normal blue morph, Southern Estonia, April.

Richard Du Toit / Longtailed widowbird (Eupletes progne) male perched in flowers, Rietvlei Nature Reserve, South Africa.

Pascal Pittorino / European honey bee (Apis mellifera) collecting pollen and nectar from Borage (Borago officinalis) Var, Provence, France, March.

Roland Seitre / Przewalski's horse (Equus ferus przewalskii) grazing in buttercups, Parc de la Haute Touche, Obterre, France. May. Captive, occurs in Central Asia.

Ole Jorgen Liodden / Heartsease / Wild pansy (Viola tricolor) flower, Norway, May.

Dong Lei / Mrs Gould's sunbird (Aethopyga gouldiae dabryii) male feeding from Chinese wild peach flowers (Prunus davidiana) Kawakarpo Mountain, Meri Snow Mountain National Park, Yunnan Province, China. May.

Dong Lei / Mrs Gould's sunbird (Aethopyga gouldiae dabryii) male hanging upside down and feeding from Chinese wild peach (Prunus davidiana) male blossom, Kawakarpo Mountain, Meri Snow Mountain National Park, Yun...