Stephen Dalton / Gatekeeper (Pyronia tithonus) in flight taking off from spear thistle, controlled conditions

Jabruson / 'Patasse' - a male member of the Ba'Aka ethnic group from the village of Mossapoula, a tribe that have lived around Dzanga Ndoki National park for thousands of years and still depend on forest resourc...

Ernie Janes / Silhouette against the sun of floating seeds attached to Scottish spear thistle (Cirsium vulgare), UK. August

Lisa Hoffner / A baby orphan Elephant (Loxodonta africana), named Murka, wounded by a poacher's spear is comforted by the touch of another elephant's trunk from outside its pen. David Sheldrick Wildlife Trust Eleph...

Juergen Freund / West Papuan fishermen in their outrigger houseboat over the shallow reef. North Raja Ampat, West Papua, Indonesia, February 2010

Tim Laman / Men spearfishing at night from the bows of canoes in Mayalibit Bay. Waigeo Island, West Papua, Indonesia, April 2007

Christophe Courteau / Kalahari bushmen, Qhaikgao and Xaiga hunting together in the grassland. Central Kalahari Desert. Botswana, August 2008

Kim Taylor / Large white / Cabbage white butterfly {Pieris brassicae} feeding on spear thistle, England

Rolf Nussbaumer / Yellow asphodel flowering on rocky ground {Asphodeline lutea} Samos, Greece.

Nigel Cattlin / Buff-tailed bumblebee (Bombus terrestris) nectaring on Spear thistle (Cirsium vulgare), thistle with Pollen beetle (Brassicogethes aeneus) infestation. Berkshire, England, UK. July.

Phil Savoie / Red tailed bumblebee (Bombus lapidarius) male flying to Spear thistle (Cirsium vulgare), Monmouthshire, Wales UK, August. May

Phil Savoie / Red tailed bumblebee (Bombus lapidarius) male feeding on Spear thistle (Cirsium vulgare), Monmouthshire, Wales, UK. July.