1112-7396 - Fruiting saguaro cactus, Carnegiea gigantea, in bloom in June, Sweetwater Preserve, Tucson, Arizona.

1112-7397 - Saguaro cactus, Carnegiea gigantea, photographed under a waning moon in the Sweetwater Preserve, Tucson, AZ.

1112-7395 - Saguaro cactus, Carnegiea gigantea, photographed at sunrise in the Sweetwater Preserve, Tucson, Arizona.

1112-7393 - Saguaro cactus, Carnegiea gigantea, photographed at sunrise in the Sweetwater Preserve, Tucson, Arizona.

1112-7394 - Saguaro cactus, Carnegiea gigantea, photographed at sunrise in the Sweetwater Preserve, Tucson, Arizona.

1112-7366 - Saguaro cactus, Carnegiea gigantea, photographed at night in the Sweetwater Preserve, Tucson, Arizona.

1178-44009 - USA, New Mexico, Lamy, Galisteo Basin Preserve, Dramatic view over Galisteo Basin Preserve at sunset

860-290983 - Woman Mentawai putting the meat in a bamboo to preserve her Siberut, Indoneisa

860-290982 - Woman Mentawai putting the meat in a bamboo to preserve her Siberut, Indoneisa

1112-6870 - A young brown bear (Ursus arctos) with a dead salmon at Lake Clark National Park and Preserve, Alaska, United States of America, North America

1112-6871 - Mother brown bear (Ursus arctos) standing and looking for salmon, Lake Clark National Park and Preserve, Alaska, United States of America, North America

1112-6869 - A young brown bear (Ursus arctos) along the shoreline at Lake Clark National Park and Preserve, Alaska, United States of America, North America

1112-6872 - A mother brown bear (Ursus arctos) with her cubs on the beach in Lake Clark National Park and Preserve, Alaska, United States of America, North America

1112-6868 - A young brown bear (Ursus arctos) fishing in the water at Lake Clark National Park and Preserve, Alaska, United States of America, North America

1112-6860 - An adult brown bear (Ursus arctos) fishing for salmon at Brooks Falls, Katmai National Park and Preserve, Alaska, United States of America, North America

1112-6867 - A young brown bear (Ursus arctos) along the shoreline at Lake Clark National Park and Preserve, Alaska, United States of America, North America

1112-6859 - A trio of brown bears (Ursus arctos) fishing for salmon at Brooks Falls, Katmai National Park and Preserve, Alaska, United States of America, North America

1112-6866 - A mother and her cub (Ursus arctos) fishing for salmon at Brooks Falls, Katmai National Park and Preserve, Alaska, United States of America, North America

1112-6864 - A pair of brown bears (Ursus arctos) mock fighting at Brooks Falls, Katmai National Park and Preserve, Alaska, United States of America, North America

1112-6861 - An adult brown bear (Ursus arctos) fishing for salmon at Brooks Falls, Katmai National Park and Preserve, Alaska, United States of America, North America

1112-6862 - An adult brown bear (Ursus arctos) fishing for salmon at Brooks Falls, Katmai National Park and Preserve, Alaska, United States of America, North America

1112-6857 - An adult brown bear (Ursus arctos) fishing for salmon at Brooks Falls, Katmai National Park and Preserve, Alaska, United States of America, North America

1112-6863 - An adult brown bear (Ursus arctos) fishing for salmon at Brooks Falls, Katmai National Park and Preserve, Alaska, United States of America, North America

1112-6858 - An adult brown bear (Ursus arctos) fishing for salmon at Brooks Falls, Katmai National Park and Preserve, Alaska, United States of America, North America

1112-6865 - Adult brown bears (Ursus arctos) fishing for salmon at Brooks Falls, Katmai National Park and Preserve, Alaska, United States of America, North America

1111-227 - Portrait of young woman wearing dry mud, used to preserve the skin and protect from the sun, Isalo, Madagascar, Africa

1350-6180 - Cueva de las Manos del Rio Pinturas, Cave of the Hands, Patagonia, Province of Santa Cruz, Argentina

1350-6150 - Cueva de las Manos del Rio Pinturas, Cave of the Hands, Patagonia, Province of Santa Cruz, Argentina

1350-6213 - Cueva de las Manos del Rio Pinturas, Cave of the Hands, Patagonia, Province of Santa Cruz, Argentina

1350-6169 - Cueva de las Manos del Rio Pinturas, Cave of the Hands, Patagonia, Province of Santa Cruz, Argentina

1350-6165 - Cueva de las Manos del Rio Pinturas, Cave of the Hands, Patagonia, Province of Santa Cruz, Argentina

1350-6149 - Cueva de las Manos del Rio Pinturas, Cave of the Hands, Patagonia, Province of Santa Cruz, Argentina

1350-6183 - Cueva de las Manos del Rio Pinturas, Cave of the Hands, Patagonia, Province of Santa Cruz, Argentina

1350-6153 - Cueva de las Manos del Rio Pinturas, Cave of the Hands, Patagonia, Province of Santa Cruz, Argentina

1350-6142 - Cueva de las Manos del Rio Pinturas, Cave of the Hands, Patagonia, Province of Santa Cruz, Argentina

1350-6194 - Cueva de las Manos del Rio Pinturas, Cave of the Hands, Patagonia, Province of Santa Cruz, Argentina

832-395653 - Lighthouse in the sea, storm tempest and high waves, Tjurpannans Nature Preserve, Grebbestad, Sweden, Scandinavia, Europe

832-395650 - Swedish house, with jetty and boat by the sea, Tjurpannans Nature Preserve, Sweden, Scandinavia, Europe

1116-50682 - Kuyuktuvuk Creek and Brooks Mountains in fall colours. Gates of the Arctic National Park and Preserve, Arctic Alaska in autumn; Alaska, United States of America

1116-50681 - Brooks Mountains and Dalton Highway in fall colours, Gates of the Arctic National Park and Preserve, Arctic Alaska in autumn; Alaska, United States of America

1116-50683 - Dall Sheep's skull on fall coloured tundra, Brooks Mountains in the background. Gates of the Arctic National Park and Preserve, Arctic Alaska in autumn; Alaska, United States of America

1116-50684 - Brooks Mountains and Kuyuktuvuk Creek Valley in fall colours under blue sky. Gates of the Arctic National Park and Preserve, Arctic Alaska in autumn; Alaska, United States of America

1116-52009 - Close-up view of the iconic Colosseum against a blue sky, showing a marble plaque above the East Entrance dedicated to Christian martyrs; Rome, Lazio, Italy

1116-51929 - Two women riding horses (Equus ferus caballus) traveling past acacia tree through the bush at the Gabus Game Ranch with mountains in the background at sunset; Otavi, Otjozondjupa, Namibia

1116-52008 - Ponte Sant'Angelo spanning the Tiber River and lined with statues of angels illuminated by lampposts at dusk and leading to the Castel Sant'Angelo (Mausoleum of Hadrian); Rome, Lazio, Italy

1116-51926 - View taken from behind of two women riding horses (Equus ferus caballus) traveling past acacia tree through the bush towards the hills at the Gabus Game Ranch at sunset; Otavi, Otjozondjupa, Namibia

1116-51957 - Woman riding horse (Equus ferus caballus) on a dirt road through the bush on the savanna looking at the camera and smiling at the Gabus Game Ranch; Otavi, Otjozondjupa, Namibia

1116-51949 - Close-up portrait of a plains zebra (Equus quagga - formerly Equus burchellii) eyeing the camera through the bushes in the Etosha National Park; Otavi, Oshikoto, Namibia

1116-51943 - Portrait of a common warthog (Phacochoerus africanus) standing in the bush among rocks and looking at the camera at the Gabus Game Ranch; Otavi, Otjozondjupa, Namibia

1116-51963 - View taken from behind of two women riding horses following a Southern giraffe (Giraffa camelopardalis angolensis) through the bush at the Gabus Game Ranch; Otavi, Otjozondjupa, Namibia

1116-51937 - Overexposed blue wildebeest (Connochaetes taurinus) lying on the Etosha Salt Pan on a sunny day in Etosha National Park; Otavi, Oshikoto, Namibia

1116-51925 - White Rhinoceros (Ceratotherium simum) walks through the long grass across the savanna in profile in the Etosha National Park at sunset; Otavi, Oshikoto, Namibia

1116-51946 - Close-up of a southern giraffe (Giraffa camelopardalis angolensis) browsing leafy thornbush on the savanna against a blue sky and eyeing the camera at the Gabus Game Ranch; Otavi, Otjozondjupa, Namibia

1116-51952 - Adult Hartmann's mountain zebra (Equus zebra hartmannae) standing in the shade looking forward while foal is looking at the camera at the Gabus Game Ranch at sunrise; Otavi, Otjozondjupa, Namibia

1116-52007 - Ponte Sant'Angelo spanning the Tiber River and lined with statues of angels leading to the Castel Sant'Angelo (Mausoleum of Hadrian) at dusk; Rome, Lazio, Italy

1116-51941 - Portrait of a gemsbok (Oryx gazella) standing on a grassy plain on the savanna and looking at the camera at the Etosha National Park; Otavi, Oshikoto, Namibia

1116-51939 - Portrait of a sunlit, male common impala (Aepyceros melampus) standing on the the plain casting a long shadow at the Gabus Game Ranch and looking at camera; Otavi, Otjozondjupa, Namibia

1116-51942 - Portrait of a gemsbok (Oryx gazella) standing on a grassy plain on the savanna and looking at the camera at the Etosha National Park; Otavi, Oshikoto, Namibia

1116-51962 - Two women riding horses (Equus ferus caballus) on a dirt road traveling through the bush at the Gabus Game Ranch with a southern giraffe (Giraffa camelopardalis angolensis) in the background; Otavi, Otjozondjupa, Namibia

1116-51935 - Plains zebra (Equus quagga formerly Equus burchellii) standing in the middle of the long grass on the savanna looking at the camera at the Etosha National Park; Otavi, Oshikoto, Namibia

1116-51965 - Black wildebeest (Connochaetes gnou) standing in the golden long grass of the savanna looking back over shoulder at the camera at the Gabus Game Ranch; Otavi, Otjozondjupa, Namibia

1116-51933 - Portrait of a southern yellow-billed hornbill (Tockus leucomelas) perching in profile on a bush. It has mottled black and brown feathers, a white head and a yellow beak, taken at the Gabus Game Ranch; Otavi, Otjozondjupa, Namibia

1116-51964 - Black wildebeest (Connochaetes gnou) standing in the golden long grass of the savanna munching and looking at the camera at the Gabus Game Ranch; Otavi, Otjozondjupa, Namibia

1116-51947 - Portrait of male sable antelope (Hippotragus niger) standing in profile at the Gabus Game Ranch at sunset; Otavi, Otjozondjupa, Namibia

1116-51940 - Hartmann's mountain zebra (Equus zebra hartmannae) staring at the camera while standing in the shade under some trees at the Gabus Game Ranch at sunset; Otavi, Otjozondjupa, Namibia

1116-51970 - Young Southern giraffe (Giraffa camelopardalis angolensis) looking at camera and standing in golden long grass in a field on the savanna at the Gabus Game Ranch; Otavi, Otjozondjupa, Namibia

1116-51932 - Spotted hyena (Crocuta crocuta) running across the grassland in the sunshine at the Etosha National Park; Otavi, Oshikoto, Namibia

1116-51958 - Woman sitting in sunlit jeep using binoculars on safari at the Gabus Game Ranch; Otavi, Otjozondjupa, Namibia

1116-51928 - Two women on horseback (Equus ferus caballus) smiling at the camera and standing near a dead tree in the brush on the savanna at the Gabus Game Ranch; Otavi, Otjozondjupa, Namibia

1116-51948 - Extreme close-up of the striped fur and mane of a plains zebra (Equus quagga - formerly Equus burchellii) in the Etosha National Park; Otavi, Oshikoto, Namibia

1116-51936 - View taken from behind of a safari guide and women travelers standing in a parked jeep talking and looking out onto the savanna with binoculars on the Gabus Game Ranch at sunrise; Otavi, Otjozondjupa, Namibia

1116-51950 - Close-up portrait of a male common waterbuck (Kobus ellipsiprymnus) looking at the camera at the Gabus Game Ranch; Otavi, Otjozondjupa, Namibia

1116-51961 - Woman riding horse (Equus ferus caballus) through the bush on the savanna at the Gabus Game Ranch; Otavi, Otjozondjupa, Namibia

1116-51930 - Two common warthogs (Phacochoerus africanus) lying in a muddy waterhole on the stony ground on the savanna at the Gabus Game Ranch; Otavi, Otjozondjupa, Namibia

1116-51934 - Portrait of southern giraffe (Giraffa camelopardalis angolensis) standing in the golden long grass in a clearing in the woodlands of the savanna at dawn in the Gabus Game Ranch; Otavi, Otjozondjupa, Namibia

1116-51944 - Portrait of a common warthog (Phacochoerus africanus) standing in the mud at a waterhole and looking at the camera at the Gabus Game Ranch; Otavi, Otjozondjupa, Namibia

1116-51938 - Portrait of a male, common ostrich (Struthio camelus) lowering head and walking through the long grass at the Gabus Game Ranch; Otavi, Otjozondjupa, Namibia

1116-52059 - Overview of the Palouse Falls surrounded by basalt rock, a remnant of ancient glacial floods and lying on the Palouse River within the Palouse Falls State Park at sunset; Washington, United States of America

1116-51927 - Two women riding horses (Equus ferus caballus) traveling through the grass near a hill at the Gabus Game Ranch at sunset; Otavi, Otjozondjupa, Namibia

1116-51945 - Close-up of a common warthog (Phacochoerus africanus) lying on its stomach in the mud at a waterhole next to a butterfly at the Gabus Game Ranch; Otavi, Otjozondjupa, Namibia

1116-52003 - Exterior of an old, stone building with a staircase and three entrances to separate apartments with terracotta flower pots on the terrace as well as suspended on the stone walls; Volterra, Province of Pisa, Tuscany, Italy

1116-51725 - Pond Slider turtle (Trachemys scripta) sunning on a submerged log and showing its reflection in a pond at the Riparian Preserve at Water Ranch; Gilbert, Arizona, United States of America

1350-2560 - Pink anemone fish, Amphiprion periderion, on magnificent sea anemone, Heteractis magnifica, Dumaguete, Negros, Philippines.

1350-2572 - Scalloped hammerhead shark, Sphyrna lewini, Kaneohe Bay, Oahu, Hawaii (N. Pacific).

1350-2481 - Giant clam, Tridacna gigas, siphon detail, Rongelap, Marshall Islands, Micronesia

1350-2455 - Fluted giant clam, Tridacna squamosa, siphon detail, Namu atoll, Marshall Islands (Pacific).

1350-2462 - Wire coral goby, Bryaninops yongei, on wire coral, Cirripathes anguina, Namu atoll, Marshall Islands (N. Pacific).

1350-2478 - Large group of pink whipray or Tahitian stingray, Himantura fai, Rongelap, Marshall Islands, Micronesia

1350-2525 - Blackspotted puffer fish, Arothron nigropunctatus, Dumaguete, Negros, Philippines, Visayan sea.

1350-2344 - French angelfish, Pomacanthus paru, Ilha rata, Fernando de Noronha national marine sanctuary, Pernambuco, Brazil (S. Atlantic)

1350-2464 - Whitetip reef shark, Triaenodon obesus, resting in cave, Namu atoll, Marshall Islands (N. Pacific).

1350-2523 - Reef cuttlefish, Sepia sp., displaying defensive posture, Dumaguete, Negros Island, Philippines.

1350-2320 - Piranha (Pygocentrus nattereri), a carnivorous fish, caught on a line, southern Pantanal, Mato Grosso do Sul, Brazil

1350-2451 - Over under image of marshallese boy smiling underwater next to coral reef and coconut trees lining the shore of Majikin Island, Namu atoll, Marshall Islands (N. Pacific).

1350-2448 - Coral reef, Namu atoll, Marshall Islands (N. Pacific).

1350-2463 - Regal angelfish, Pygoplites diacanthus, Namu atoll, Marshall Islands (N. Pacific).

1350-2499 - Balloonfish, Diodon holocanthus, at night, Dumaguete, Negros Island, Philippines.

1350-2473 - Red (Lace) coral, Distichopora violacea, feather stars, and juvenile gray reef shark, Carcharhinus amblyrhynchos, Ailuk atoll, Marshall Islands, Pacific

1350-3008 - Entry sign at Craters of the Moon National Monument and Preserve, Idaho, USA.

1350-2465 - Whitetip reef shark, Triaenodon obesus, Namu atoll, Marshall Islands (N. Pacific).