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

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

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

Hiroya Minakuchi / Mittens being illuminated by light, Monument Valley Navajo Tribal Park, Arizona

Jouan Rius / West Mitten Butte, Monument Valley Navajo Tribal Park, Arizona, USA January 2013

Jouan Rius / West Mitten butte and Big Chief, rock formations in Monument Valley Navajo Tribal Park, Arizona, USA December 2012

Jouan Rius / West Mitten Butte, Monument Valley Navajo Tribal Park, Arizona, USA December 2012

Jouan Rius / West Mitten Butte, Monument Valley Navajo Tribal Park, Arizona, USA December 2012

Tim Fitzharris / Mittens, North Window, Monument Valley, Arizona

Tim Fitzharris / Moon over mittens, Monument Valley, Arizona

Tom Vezo / East and West Mittens, Monument Valley, Utah

Tom Vezo / Mittens at sunrise, Monument Valley Navajo Tribal Park, Arizona

Bertie Gregory / 2020VISION / Zoological Society of London scientist holding a Chinese Mitten Crab found during European Eel (Anguilla anguilla) Survey, London, England, UK, July 2011 Model Release Available

Pete Oxford / Sculptured Slipper Lobster (Parribacus antarcticus), Bonaire, Netherlands Antilles, Caribbean

Bryan and Cherry Alexander / Evenk man warming his nose with Reindeer skin mitten. Evenkiya, Siberia, Russia, 1997.

Steven Kazlowski / West and East Mitten buttes silhouetted at sunset, Monument Valley, Navajo Tribal Park, Arizona, USA. February 2009.

Steven Kazlowski / West and East Mitten buttes silhouetted at sunset, Monument Valley, Navajo Tribal Park, Arizona, USA. February 2009.

Tim Fitzharris / East and West Mittens, buttes at sunrise with full moon, Monument Valley, Arizona

Tim Fitzharris / East and West Mittens, buttes at sunrise, Monument Valley, Arizona

Tim Fitzharris / East and West Mittens, buttes at sunrise, Monument Valley, Arizona

Willem Kolvoort / Chinese mitten crab (Eriocheir sinensis) Holland. Introduced species

Willem Kolvoort / Chinese mitten crab (Eriocheir sinensis) Holland. Introduced species

Willem Kolvoort / Chinese mitten crab (Eriocheir sinensis) Holland. Introduced species

Juergen Freund / The famous view of East and West Mitten Buttes sandstone rock formations in Monument Valley, Utah, USA

Tim Fitzharris / Mitten Rock, New Mexico

Tim Fitzharris / Mitten Rock with autumn colored cottonwoods and blooming desert shrubs, New Mexico

Tim Fitzharris / The east and west Mittens surrounded by rippled sand, Monument Valley Navajo Tribal Park, Arizona

Tim Fitzharris / Butte at sunrise, East Mitten Butte, Monument Valley, Arizona

Hiroya Minakuchi / Mittens, Monument Valley, Utah

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

Hiroya Minakuchi / Mittens being illuminated by light, Monument Valley Navajo Tribal Park, Arizona

Hiroya Minakuchi / Mittens being illuminated by light, Monument Valley Navajo Tribal Park, Arizona

Tim Fitzharris / Sandstorm enshrouding mittens, Monument Valley, Arizona

Tom Vezo / East and West Mitten Buttes, Monument Valley, Utah

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

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

Ingo Arndt / East and West Mitten Buttes, Monument Valley Navajo Tribal Park, Arizona

Ingo Arndt / East and West Mitten Buttes, Monument Valley Navajo Tribal Park, Arizona

Chris Shields / Illustration of Mitten / Chinese mitten crab (Eriocheir sinensis), Varunidae.

Yva Momatiuk & John Eastcott / Cirrus and cumulus clouds over Mittens, a group of sandstone mesas, Monument Valley Navajo Tribal Park, Arizona

Tony Wu / Japanese mitten lobster (Parribacus japonicus) patrolling seabed at night. East China Sea, Kagoshima Prefecture, Japan.

Tony Wu / Japanese mitten lobster (Parribacus japonicus) peeking out from crevice in rock and coral substrate just before emerging to forage at night. East China Sea, Kagoshima Prefecture, Japan.

Bryan and Cherry Alexander / Otto Simigak with a mug of tea during a break on a hunting trip in light snow. Siorapaluk, Northwest Greenland.1977.