Tim Fitzharris / The Mittens and Merrick Butte at sunrise, Monument Valley, Arizona

Tim Fitzharris / East and West Mittens, buttes with rippled sand, Monument Valley, Arizona

Jouan Rius / West Mitten Butte and East Mitten Butte, Monument Valley Navajo Tribal Park, Utah-Arizona, USA

Jouan Rius / East Mitten Butte and juniper tree, Monument Valley Navajo Tribal Park, Utah-Arizona, USA

Jouan Rius / West Mitten Butte, Monument Valley Navajo Tribal Park, Utah-Arizona, USA

Ingo Arndt / East Mitten, Monument Valley, Navajo Tribal Park, Arizona, USA, October

Bryan and Cherry Alexander / Close up of the sleeves of a Nenets man's reindeer skin Malitsa (coat) with reindeer skin mittens attached to it. Yamal, Western Siberia, Russia

Pascal Kobeh / Sculptured mitten lobster (Parribacus antarcticus) at night, Astove, Seychelles. Indian Ocean.

Tim Fitzharris / Milky Way and starry sky over buttes, Monument Valley, Arizona

Tim Fitzharris / Milky Way over buttes, Monument Valley, Arizona

Pascal Kobeh / Sculptured mitten lobster (Parribacus antarcticus) at night, Maldives. Indian Ocean.

Hiroya Minakuchi / Mittens in desert, Monument Valley Navajo Tribal Park, Arizona