Ingo Arndt / Christmas Island Red Crabs (Gecarcoidea natalis) crossing closed road, during annual migration, Christmas Island, Indian Ocean, Australian Territory, November 2009.
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Adrian Davies / Rainforest canopy walkway, Sabah, Borneo, September 2015.
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Gerrit Vyn / Rain showers over sagebrush-steppe at the foot of the Sawtooth Mountains. Clark County, Idaho, USA, June.
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Kirkendall-Spring / Hiker crossing Newton Creek, Elk Meadows Trail, Mount Hood Wilderness. Oregon, USA, July 2014. Model released.
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Alex Hyde / Cable cars at Fiss, Nordtirol, Austrian Alps, June 2014.
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David Noton / People crossing a footbridge over the Nam Khan River, Luang Prabang, Laos, March 2009.
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Jabruson Motion / African forest elephant (Loxodonta africana cyclotis) calf keeping larger juvenile from gaining access to a mineral dig, Zanga-Ndoki National Park, Sangha-Mbaere Prefecture, Central African Republic
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Jean E. Roche / Salt pans with high salt concentration. Salin de Giraud, Camargue, France, June 2013.
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Jean E. Roche / Salt pans with high salt concentration. Salin de Giraud, Camargue, France, June 2013.
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Denis-Huot / Masai giraffe (Giraffa camelopardalis tippelskirchi) group feeding, Masai-Mara Game Reserve, Kenya
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Enrique Lopez-Tapia / Tourists on a zodiac going past icebergs in Iceberg Alley, Pleneau Island, Antarctica
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Bernard Castelein / Ring-tailed Lemur (Lemur catta) Anjaha community conservation site, Ambalavao, Madagascar