Daniel Heuclin / Collared Lizard (Crotaphytus collaris baileyi) male with a regenerated tail in defensive posture, controlled conditions, North Arizona, USA
01362569
Daniel Heuclin / Collared Lizard (Crotaphytus collaris baileyi) male with a regenerated tail, controlled conditions, North Arizona, USA
01362568
Daniel Heuclin / Great basin collared lizard (Crotaphytus bicinctores) male, taken in controlled conditions, Joshua's Tree National Monument, California, USA
01355573
Doug Wechsler / Common Collared Lizard (Crotaphytus collaris) basking. Colorado, USA, June.
01352556
B&S Draker / Reticulate Collared Lizard (Crotaphytus reticulatus) adult sunning. Starr County, Rio Grande Valley, Texas, USA.
01318747
Doug Wechsler / Collared Lizard (Crotaphytus collaris). Colorado National Monument, CO, USA
01166678
George McCarthy / Portrait of Collared Lizard (Crotaphytus collaris) showing length of long tail, Big Bend National Park, Texas, USA
00590277
Patricio Robles Gil / Collared Lizard (Crotaphytus collaris) sunning on a rock, Johnson Peak, Sonora coast, Mexico
01124955
David Kjaer / Collared lizard sunning {Crotaphytus collaris} Sonoran desert, Arizona, USA
01129553
John Cancalosi / Collared lizard {Crotaphytus collaris} Colorado, USA.
01063877
John Cancalosi / Collared lizard {Crotaphytus collaris} eating darkling beetle, Colorado, USA
00220384
Tom Vezo / Zone-tailed Hawk (Buteo albonotatus) flying with Collared Lizard (Crotaphytus collaris) clutched in talons, Tucson, Arizona
00101488
Larry Minden / Collared Lizard (Crotaphytus collaris) sunning itself on a rock, Mojave Desert, California
01115464
John Cancalosi / Collared lizard {Crotaphytus collaris} Colorado, USA
00593197
Jeff Foott / Collared Lizard (Crotaphytus collaris) male, Arches National Park, Utah
00593196
Jeff Foott / Collared Lizard (Crotaphytus collaris) male, Arches National Park, Utah
00593194
Jeff Foott / Collared Lizard (Crotaphytus collaris) male, Arches National Park, Utah
01173548
HUW CORDEY / Collared lizard {Crotaphytus collaris} Grand Canyon, Arizona, USA
01173547
HUW CORDEY / Collared lizard {Crotaphytus collaris} Grand Canyon, Arizona, USA
01723134
Joel Sartore / Photo Ark / Reticulated collared lizard (Crotaphytus reticulatus) portrait, San Antonio Zoo, Texas, USA. Captive.
01723133
Joel Sartore / Photo Ark / Reticulated collared lizard (Crotaphytus reticulatus) skin detail, San Antonio Zoo, Texas, USA. Captive.
01723132
Joel Sartore / Photo Ark / Reticulated collared lizard (Crotaphytus reticulatus) portrait, San Antonio Zoo, Texas, USA. Captive.
01706067
Joel Sartore / Photo Ark / Dickerson's collared lizard (Crotaphytus dickersonae) with mouth open, portrait, Omaha Henry Doorly Zoo and Aquarium. Captive, occurs in Mexico.
01706066
Joel Sartore / Photo Ark / Dickerson's collared lizard (Crotaphytus dickersonae) with mouth open, portrait, Omaha Henry Doorly Zoo and Aquarium. Captive, occurs in Mexico.
01706065
Joel Sartore / Photo Ark / Dickerson's collared lizard (Crotaphytus dickersonae) with mouth open, head portrait, Omaha Henry Doorly Zoo and Aquarium. Captive, occurs in Mexico.
01706060
Joel Sartore / Photo Ark / Chihuahua collared lizard (Crotaphytus collaris melanomaculatus) male, portrait, Omaha Henry Doorly Zoo and Aquarium. Captive.
01706059
Joel Sartore / Photo Ark / Chihuahua collared lizard (Crotaphytus collaris melanomaculatus) male, head portrait, Omaha Henry Doorly Zoo and Aquarium. Captive.
01706058
Joel Sartore / Photo Ark / Chihuahua collared lizard (Crotaphytus collaris melanomaculatus) male, portrait, Omaha Henry Doorly Zoo and Aquarium. Captive.
01706057
Joel Sartore / Photo Ark / Chihuahua collared lizard (Crotaphytus collaris melanomaculatus) male, head portrait, Omaha Henry Doorly Zoo and Aquarium. Captive.
01706056
Joel Sartore / Photo Ark / Chihuahua collared lizard (Crotaphytus collaris melanomaculatus) male, head portrait, Omaha Henry Doorly Zoo and Aquarium. Captive.
01706055
Joel Sartore / Photo Ark / Chihuahua collared lizard (Crotaphytus collaris melanomaculatus) male, portrait, Omaha Henry Doorly Zoo and Aquarium. Captive.
01706054
Joel Sartore / Photo Ark / Pair of Chihuahua collared lizards (Crotaphytus collaris melanomaculatus), male on left, portrait, Omaha Henry Doorly Zoo and Aquarium. Captive.
01706053
Joel Sartore / Photo Ark / Chihuahua collared lizard (Crotaphytus collaris melanomaculatus) female, portrait, Omaha Henry Doorly Zoo and Aquarium. Captive.
01705914
Joel Sartore / Photo Ark / Dickerson's collared lizard (Crotaphytus dickersonae) portrait, Omaha Henry Doorly Zoo and Aquarium. Captive, occurs in Mexico.
01663742
Jeff Foott / Common collared lizard (Crotaphytus collaris auriceps) male basking on rock. Arches National Park, Utah, USA. May.
01663741
Jeff Foott / Common collared lizard (Crotaphytus collaris auriceps) male basking on rock. Arches National Park, Utah, USA. May.
01663740
Jeff Foott / Common collared lizard (Crotaphytus collaris auriceps) male basking on rock. Arches National Park, Utah, USA. May.
01663739
Jeff Foott / Common collared lizard (Crotaphytus collaris auriceps) male basking on rock. Arches National Park, Utah, USA. May.
01663738
Jeff Foott / Common collared lizard (Crotaphytus collaris auriceps) male basking on rock. Arches National Park, Utah, USA. May.
01663737
Jeff Foott / Common collared lizard (Crotaphytus collaris auriceps) male basking on rock. Arches National Park, Utah, USA. May.
01663736
Jeff Foott / Common collared lizard (Crotaphytus collaris auriceps) male basking on rock. Arches National Park, Utah, USA. May.
01634343
Frederique Olivier / Yellow-headed collared lizard (Crotaphytus collaris auriceps) basking on a rock, Castle Valley, Utah, USA.
01634342
Frederique Olivier / Tracking shot of a Yellow-headed collared lizard (Crotaphytus collaris auriceps) moving on a rock, Castle Valley, Utah, USA.
01634341
Frederique Olivier / Yellow-headed collared lizard (Crotaphytus collaris auriceps) in shade on a rock, jumps away, Castle Valley, Utah, USA, 2018.
01634340
Frederique Olivier / Yellow-headed collared lizard (Crotaphytus collaris auriceps) basking on a rock, Castle Valley, Utah, USA, 2018.
01634339
Frederique Olivier / Yellow-headed collared lizard (Crotaphytus collaris auriceps) basking on a rock, looking around, Castle Valley, Utah, USA, 2018.
01634338
Frederique Olivier / Yellow-headed collared lizard (Crotaphytus collaris auriceps) entering a hole, Castle Valley, Utah, USA, 2018.
01634337
Frederique Olivier / Yellow-headed collared lizard (Crotaphytus collaris auriceps) emerging from a hole, Castle Valley, Utah, USA, 2018.
01634336
Frederique Olivier / Yellow-headed collared lizard (Crotaphytus collaris auriceps) pausing outside a crevice in a rock before entering, Castle Valley, Utah, USA, 2018.
01634335
Frederique Olivier / Yellow-headed collared lizard (Crotaphytus collaris auriceps) climbing on a rock, basking, Castle Valley, Utah, USA, 2018.