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    • Az
  • (47)
Sunset at Yaki Point on the South Rim with stratified rim rocks and minute storm clouds inside the canyon below, Grand Canyon National Park, Arizona, USA.  -  Jack Dykinga
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Jack Dykinga / Sunset at Yaki Point on the South Rim with stratified rim rocks and minute storm clouds inside the canyon below, Grand Canyon National Park, Arizona, USA.
Rainbow after a storm over Mount Hayden, Point Imperial, North Rim, Grand Canyon National Park, Arizona, USA.  -  Jack Dykinga
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Jack Dykinga / Rainbow after a storm over Mount Hayden, Point Imperial, North Rim, Grand Canyon National Park, Arizona, USA.
Chuckwalla lizard sunning {Sauromalus obesus} Grand Canyon, AZ, USA  -  Huw Cordey
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Huw Cordey / Chuckwalla lizard sunning {Sauromalus obesus} Grand Canyon, AZ, USA
Broad billed hummingbird (Cynanthus latirostris) AZ, USA Madera Canyon, Arizona  -  Mary McDonald
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Mary McDonald / Broad billed hummingbird (Cynanthus latirostris) AZ, USA Madera Canyon, Arizona
Arabian stallion trotting in paddock, Phoenix, Arizona, USA  -  Carol Walker
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Carol Walker / Arabian stallion trotting in paddock, Phoenix, Arizona, USA
The Colorado River courses through Grand Canyon National Park at sunrise as viewed from Toroweap Overlook, over 3000 ft above the Colorado River. Arizona, USA.  -  Visuals Unlimited
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Visuals Unlimited / The Colorado River courses through Grand Canyon National Park at sunrise as viewed from Toroweap Overlook, over 3000 ft above the Colorado River. Arizona, USA.
Quartermaster Canyon overlooking west into the Colorado River gorge at dawn, Grand Canyon West Hualapai Indian Reserve, Mojave Desert, Arizona, USA  -  Jack Dykinga
01176616
Jack Dykinga / Quartermaster Canyon overlooking west into the Colorado River gorge at dawn, Grand Canyon West Hualapai Indian Reserve, Mojave Desert, Arizona, USA
Sunrise on stratified rim rock tower at Grandview Point with meandering Colorado River riffle below, Grand Canyon National Park, Arizona, USA.  -  Jack Dykinga
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Jack Dykinga / Sunrise on stratified rim rock tower at Grandview Point with meandering Colorado River riffle below, Grand Canyon National Park, Arizona, USA.
Vermillion flycatcher (Pyrocephalus rubinus) perched on branch, AZ, USA  -  John Cancalosi
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John Cancalosi / Vermillion flycatcher (Pyrocephalus rubinus) perched on branch, AZ, USA
Portrait of Northern cardinal (Cardinalis cardinalis) male perched on branch, AZ, USA  -  John Cancalosi
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John Cancalosi / Portrait of Northern cardinal (Cardinalis cardinalis) male perched on branch, AZ, USA
Portrait of Mourning dove (Zenaida macroura), Sonoran Desert, AZ, USA  -  John Cancalosi
01147543
John Cancalosi / Portrait of Mourning dove (Zenaida macroura), Sonoran Desert, AZ, USA
Gambel's quail (Callipepla gambelii) male, perched on Saguaro cactus, Sonoran Desert, AZ, USA  -  Nigel Bean
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Nigel Bean / Gambel's quail (Callipepla gambelii) male, perched on Saguaro cactus, Sonoran Desert, AZ, USA
Gilded flicker {Colaptes chrysoides} feeding on cholla cactus, AZ, USA.  -  Barry Mansell
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Barry Mansell / Gilded flicker {Colaptes chrysoides} feeding on cholla cactus, AZ, USA.
Cactus wren singing {Campylorhynchus brunneicapillus} AZ, USA.  -  John Cancalosi
01129594
John Cancalosi / Cactus wren singing {Campylorhynchus brunneicapillus} AZ, USA.
Gila woodpecker {Melanerpes uropygialis} feeding from flower, AZ, USA. Sonoran desert  -  John Cancalosi
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John Cancalosi / Gila woodpecker {Melanerpes uropygialis} feeding from flower, AZ, USA. Sonoran desert
Western diamondback rattlesnake {Crotalus atrox} eating Wood rat, AZ, USA.  -  John Cancalosi
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John Cancalosi / Western diamondback rattlesnake {Crotalus atrox} eating Wood rat, AZ, USA.
Gambel's quail {Callipepla gambelii} pair on Saguaro cactus, Sonoran desert, AZ, USA  -  David Kjaer
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David Kjaer / Gambel's quail {Callipepla gambelii} pair on Saguaro cactus, Sonoran desert, AZ, USA
Cactus wren {Campylorhynchus brunneicapillus}  Green valley, Arizona, USA  -  Tom Vezo
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Tom Vezo / Cactus wren {Campylorhynchus brunneicapillus} Green valley, Arizona, USA
Skull of extinct Harrington's mountain goat {Oreamnos harringtoni} AZ, USA. Late pleistocene period. Grand canyon  -  Nigel Bean
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Nigel Bean / Skull of extinct Harrington's mountain goat {Oreamnos harringtoni} AZ, USA. Late pleistocene period. Grand canyon
Preserved dung of extinct Shasta ground sloth. AZ, USA {Nothrotheriops shastensis} Rampart cave, Grand Canyon, Arizona. Late Pleistocene  -  Nigel Bean
01093862
Nigel Bean / Preserved dung of extinct Shasta ground sloth. AZ, USA {Nothrotheriops shastensis} Rampart cave, Grand Canyon, Arizona. Late Pleistocene
Woodrat midden preserved in Grand Canyon from late Pleistocene period. Arizona, USA {Neotoma sp} over 20,000 yrs old. Seeds identified help to reconstruct past vegetation cover of continent.  -  Nigel Bean
01092440
Nigel Bean / Woodrat midden preserved in Grand Canyon from late Pleistocene period. Arizona, USA {Neotoma sp} over 20,000 yrs old. Seeds identified help to reconstruct past vegetation cover of continent.
Woodrat faecal pellets + Juniper seeds preserved from late Pleistocene period AZ, USA found in preserved Woodrat midden {Neotoma sp}  -  Nigel Bean
01092438
Nigel Bean / Woodrat faecal pellets + Juniper seeds preserved from late Pleistocene period AZ, USA found in preserved Woodrat midden {Neotoma sp}
Regal horned lizard. {Phrynosoma solare} Sonoran desert, AZ, USA  -  John Cancalosi
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John Cancalosi / Regal horned lizard. {Phrynosoma solare} Sonoran desert, AZ, USA
Broad billed hummingbird (Cynanthus latirostris) AZ, USA Madera Canyon, Arizona  -  Mary McDonald
01040494
Mary McDonald / Broad billed hummingbird (Cynanthus latirostris) AZ, USA Madera Canyon, Arizona
Cactus wren pair {Campylorhynchus brunneicapillus} AZ USA Green  -  Tom Vezo
21099861
Tom Vezo / Cactus wren pair {Campylorhynchus brunneicapillus} AZ USA Green
Bannertail Kangaroo Rat foraging filling cheek pouches (Dipodomys spectabilis) AZ USA  -  Mary McDonald
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Mary McDonald / Bannertail Kangaroo Rat foraging filling cheek pouches (Dipodomys spectabilis) AZ USA
Meteor Crater, Winslow, Arizona, USA.  -  Visuals Unlimited
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Visuals Unlimited / Meteor Crater, Winslow, Arizona, USA.
Aerial view of the Meteor Crater, Winslow, Arizona, USA.  -  Visuals Unlimited
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Visuals Unlimited / Aerial view of the Meteor Crater, Winslow, Arizona, USA.
Sandstone slickrock formation, Paria Canyon, Vermillion Cliffs Wilderness Area, Arizona, USA.  -  Visuals Unlimited
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Visuals Unlimited / Sandstone slickrock formation, Paria Canyon, Vermillion Cliffs Wilderness Area, Arizona, USA.
Perlite, Arizona, USA  -  Visuals Unlimited
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Visuals Unlimited / Perlite, Arizona, USA
Urbanization in the Sonoran Desert, Scottsdale, Arizona, USA in the Greater Phoenix area. The waterway is the Hayden-Rhodes Aqueduct. October 2006  -  Visuals Unlimited
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Visuals Unlimited / Urbanization in the Sonoran Desert, Scottsdale, Arizona, USA in the Greater Phoenix area. The waterway is the Hayden-Rhodes Aqueduct. October 2006
Agriculture in the Sonoran Desert view eastward toward Scottsdale and the greater Phoenix area, Arizona, USA. Note the winding aqueduct. October 2006  -  Visuals Unlimited
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Visuals Unlimited / Agriculture in the Sonoran Desert view eastward toward Scottsdale and the greater Phoenix area, Arizona, USA. Note the winding aqueduct. October 2006
Gila chubs (Gila intermedia), an endangered species, Gila River, Arizona, USA.  -  Visuals Unlimited
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Visuals Unlimited / Gila chubs (Gila intermedia), an endangered species, Gila River, Arizona, USA.
Fern fossil, Triassic Period, 200 m.y.a., Arizona, USA.  -  Visuals Unlimited
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Visuals Unlimited / Fern fossil, Triassic Period, 200 m.y.a., Arizona, USA.
Marcasite (FeS2), Arizona, USA.  -  Visuals Unlimited
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Visuals Unlimited / Marcasite (FeS2), Arizona, USA.
Elf owl (Micrathene whitneyi) Tortalita Mtns, Tucson, Arizona, USA., April, adult, Captive  -  Visuals Unlimited
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Visuals Unlimited / Elf owl (Micrathene whitneyi) Tortalita Mtns, Tucson, Arizona, USA., April, adult, Captive
The Colorado River in the Grand Canyon, Arizona, USA. The top of the inner gorge marks the contact between Precambrian and Paleozoic rocks.  -  Visuals Unlimited
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Visuals Unlimited / The Colorado River in the Grand Canyon, Arizona, USA. The top of the inner gorge marks the contact between Precambrian and Paleozoic rocks.
Barred tiger salamander (Ambystoma mavoritum). Arizona, USA.  -  Visuals Unlimited
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Visuals Unlimited / Barred tiger salamander (Ambystoma mavoritum). Arizona, USA.
Bark of the Yellow Palo Verde tree (Cercidium microphyllum) Sonoran Desert, Arizona, USA. The green bark contains chlorophyll that allows this deciduous tree to photosynthesize even when it has shed i...  -  Visuals Unlimited
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Visuals Unlimited / Bark of the Yellow Palo Verde tree (Cercidium microphyllum) Sonoran Desert, Arizona, USA. The green bark contains chlorophyll that allows this deciduous tree to photosynthesize even when it has shed i...
Vegetative or asexual reproduction showing offshoots from rhizomes of the Century plant (Agave chrysantha) Arizona, USA.  -  Visuals Unlimited
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Visuals Unlimited / Vegetative or asexual reproduction showing offshoots from rhizomes of the Century plant (Agave chrysantha) Arizona, USA.
Collared Peccary or Javelina (Pecari tajacu), Sonoran Desert, Arizona, USA.  -  Visuals Unlimited
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Visuals Unlimited / Collared Peccary or Javelina (Pecari tajacu), Sonoran Desert, Arizona, USA.
Lettuce field (Lactuca sativa) Arizona, USA.  -  Visuals Unlimited
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Visuals Unlimited / Lettuce field (Lactuca sativa) Arizona, USA.
Yellow or Foothills Palo Verde trees (Cercidium microphyllum) and Giant Saguaro Cactus, Organ Pipe National Monument, Sonoran Desert, Arizona, USA. Note the spacing of the desert plants due to competi...  -  Visuals Unlimited
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Visuals Unlimited / Yellow or Foothills Palo Verde trees (Cercidium microphyllum) and Giant Saguaro Cactus, Organ Pipe National Monument, Sonoran Desert, Arizona, USA. Note the spacing of the desert plants due to competi...
Teddybear Cholla (Opuntia bigelovii) joints stuck to human boots and socks, a method of dispersal and asexual or vegetative reproduction, Arizona, USA. The joints may grow when they are released in a...  -  Visuals Unlimited
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Visuals Unlimited / Teddybear Cholla (Opuntia bigelovii) joints stuck to human boots and socks, a method of dispersal and asexual or vegetative reproduction, Arizona, USA. The joints may grow when they are released in a...
Velvet Mesquite tree (Prosopis velutina) Sonoran Desert, Arizona, USA  -  Visuals Unlimited
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Visuals Unlimited / Velvet Mesquite tree (Prosopis velutina) Sonoran Desert, Arizona, USA
Velvet Mesquite tree flowers and leaves (Prosopis velutina), Sonoran Desert, Arizona, USA.  -  Visuals Unlimited
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Visuals Unlimited / Velvet Mesquite tree flowers and leaves (Prosopis velutina), Sonoran Desert, Arizona, USA.
Arizona Tiger Salamander (Ambystoma tigrinum nebulosa) Northern Arizona, USA.  -  Visuals Unlimited
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Visuals Unlimited / Arizona Tiger Salamander (Ambystoma tigrinum nebulosa) Northern Arizona, USA.