Heather Angel / Man using pole to propel bamboo raft on Lijang / Li River, Karst peaks beyond. At dawn, Lijiang River Scenic Zone, Yangshuo county, Guangxi, China.

Dong Lei / Poppy (Meconopsis racemosa) flower in habitat. Serxu, Shiqu county, Sichuan Province, Qinghai-Tibet Plateau, China. August.

Dong Lei / Blue poppy (Meconopsis racemosa var. spinulifera) in misty landscape, Serxu, Shiqu county, Sichuan Province, Qinghai-Tibet Plateau, China, August 2010.

Dong Lei / Yellow poppywort (Meconopsis integrifolia) flowering, Qinghai-Tibet Plateau, Shiqu County, Sichuan Province, China, August.

Rolf Nussbaumer / Black and yellow Mud Dauber (Sceliphron caementarium) female collecting mud for her nest. Comal County, Hill Country, Central Texas, USA, July.

Rolf Nussbaumer / Broad-headed Bug (Hyalymenus tarsatus) nymphs on leaf mimicking ants. Comal County, Hill Country, Central Texas, USA, October.

Rolf Nussbaumer / Broad-headed Bug (Hyalymenus tarsatus) nymph on leaf mimicking an ant. Comal County, Hill Country, Central Texas, USA, October.

Juan Carlos Munoz / Cnoc Raithni / Raithnighe national monument, burial mound surrounded by drystone wall. Inisheer, Aran Islands, County Galway, Republic of Ireland. May 2011.

Juan Carlos Munoz / Dun Aonghasa / Fort of Aongus hill fort. Inishmore, Aran Islands, County Galway, Republic of Ireland. May 2011.

Staffan Widstrand / Wild Wonders of China / Hill Pigeon or Eastern Rock Dove (Columba rupestris) in flight, bird breeding at the Taoist Tian Feng Ling Temple, Beiyue Hengshan Mountain, Datong, Hunyuan County, Shanxi Province, China

Staffan Widstrand / Wild Wonders of China / Hill Pigeon or Eastern Rock Dove (Columba rupestris) bird breeding at the Taoist Tian Feng Ling Temple, Beiyue Hengshan Mountain, Datong, Hunyuan County, Shanxi Province, China

Ashley Cooper / Employee of Cumbria County Council clearing snow from the blocked Kirkstone Pass, the highest mountain pass in the Lake District, England, UK. January 2010