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

Ammonite / Tracking shot towards Buff-tailed bumble bees (Bombus terrestris) inside nest, France, May.

Ammonite / Close-up of Buff-tailed bumble bees (Bombus terrestris) inside nest feeding on honey from wax honey pots, France, May.

Ammonite / Buff-tailed bumble bees (Bombus terrestris) inside nest, with wax cells containing honey, France, May.

Stephen Dalton / Buff tailed bumblebee (Bombus terrestris), worker flying around, controlled conditions.

Paul Hobson / Small garden bumble bee (Bombus hortorum) frozen on small twig, covered in ice crystals, Sheffield, UK February 2011

Stephen Dalton / Buff-tailed Bumblebee (Bombus terrestris) worker bee flying to Cowslip (Primula veris) flowers. UK, April.

Chris Gomersall / 2020VISION / Buff-tailed bumble bee (Bombus terrestris) on field poppy (Papaver rhoeas) showing fully laden pollen sacs, RSPB Hope Farm, Cambridgeshire, UK, May

Chris Gomersall / 2020VISION / Buff-tailed bumble bee (Bombus terrestris) worker alighting on a Scorpionweed (Phacelia tancetifolia) flower in a conservation margin in order to feed, Hope Farm RSPB reserve, Cambridgeshire, England,...

Chris Gomersall / 2020VISION / Buff-tailed bumble bee (Bombus terrestris) worker feeding on nectar from a Scorpionweed (Phacelia tancetifolia) flower in a conservation margin, Hope Farm RSPB reserve, Cambridgeshire, England, UK, Ma...

Nick Upton / 2020VISION / Queen Red tailed bumblebee (Bombus lapidarius) feeding on Yellow tree peony (Paeonia ludlowii) flower in garden, with house in the background, Wiltshire, England, UK, April . Property released.

Stephen Dalton / Early Bumblebee (Bombus pratorum) visiting Geranium flower. Sussex, UK, May.