Michael Hutchinson / Slow motion clip of a Common carder bumblebee (Bombus pascuorum) feeding from a Viper's bugloss (Echium vulgare) flower, Bristol, England, UK, September.

Clay Bolt / Central bumble bee (Bombus centralis) pollinating wildflowers in the Bridger Range, Bozeman, Montana. August.

Phil Savoie / Common carder bumblebee (Bombus pascuorum) feeding on Purple toadflax (Linaria purpurea) Monmouthshire, Wales, UK April

Heather Angel / Brown-banded carder bee (Bombus pascuorum) nectaring on Woolly foxglove (Digitalis lanata). Sussex, England, UK. July.

Nick Upton / Buff-tailed bumblebee (Bombus terrestris) nectaring on a Greater knapweed flower (Centaurea scabiosa) in a chalk grassland meadow, flies off, Wiltshire, England, UK, June.

Phil Savoie / Common carder bumblebee (Bombus pascuorum), feeding on Comfrey (Symphytum officinale), Monmouthshire, Wales, UK. May

Will Watson / Common carder bee (Bombus pascuorum) on Red clover (Trifolium pratense). Brown field site, Worcester, Worcestershire, England, UK. June.

Konrad Wothe / Slow motion clip of a Meadow brown butterfly (Maniola jurtina) nectaring on a Knapweed (Centaurea) flower with a Bumblebee (Bombus), Bavaria, Germany, July.

Matthew Maran / Common carder bee (Bombus pascuorum) visiting a foxglove (Digitalis purpurea) on calcareous grassland, Devon, England, UK, June.

Nick Upton / Common carder bumblebee (Bombus pascuorum) nectaring on Wild marjoram (Origanum vulgare) flowerhead, Wiltshire, UK, August.

Will Watson / Common Carder Bees (Bombus pascuorum) on Spear Thistle (Cirsium vulgare), Herefordshire Plateau, England, UK, July.

Alan Williams / Buff-tailed Bumble Bee (Bombus terrestris) feeding on Tufted Vetch (Vicia cracca) at the edge of a meadow, Cheshire, UK, August