860-288924 - Female Paper Nautilus, Argonauta species, found hiding in Sargassum during a blackwater drift dive. Palm Beach, Florida, USA, Atlantic Ocean.

860-289053 - Marlin. baby 1 inch long marlin, Istiophorida, photographed in open ocean at 40 feet with the bottom 600 feet below during a blackwater dive. Palm Beach, Florida, USA. Atlantic Ocean

860-288950 - a larval Pancake Batfish, Halieutichthys aculeatus, photographed during a black water dive in about 50 feet with the bottom more than 600 feet below. Palm Beach, Florida, USA, Atlantic Ocean

860-289048 - Diamond Squid / Thysanoteuthis. A juvenile deep water Diamond Squid, Thysanoteuthis rhombus, makes an appearance and poses during a black water drift dive near the surface in waters 600 feet deep. Palm beach, Florida, USA, Atlantic Ocean

860-288907 - Long Arm Octopus, Abdopus species, photographed at 70 feet during a blackwater dive over deep water. Palm Beach, FLorida, USA.

860-288918 - Snaketooth fish or Swallower, Chiasmodontidae, a deep-sea percomorph fish, photographed at 30 foot depth with the bottom more than 600 feet below during a blackwater dive. Palm Beach, Florida, USA. Atlantic Ocean

860-289052 - Paper Nautilus / Argonauta. Female Paper Nautilus, Argonauta species, found riding on a Salp during a blackwater drift dive. Palm Beach, Florida, USA, Atlantic Ocean.

860-288923 - Young Ribbonfish (Trachipteridae species), during a blackwater drift dive. Palm Beach, Florida, USA, Atlantic Ocean.

860-288801 - Clay loaded with iron oxides and dried out, Rio Tinto, Andalusia, Spain *** Local Caption *** R?o Tinto ("Red River") is very acidic (Ph 2) and has a deep reddish hue due to iron dissolved in water. The acidity of the watercourse is linked to the drainage of pyrite, which is very present in the subsoil. Extremophilic and endemic bacteria and algae colonize the river bed, forming a fragile biofilm that evokes the hot springs of Yellowstone Park in the USA.

860-288910 - Young Ribbonfish (Trachipteridae species), during a blackwater drift dive. Palm Beach, Florida, USA, Atlantic Ocean.

860-288798 - Reflections on Rio Tinto, near its source, Andalusia, Spain *** Local Caption *** R?o Tinto ("Red River") is very acidic (Ph 2) and has a deep reddish hue due to iron dissolved in water. The acidity of the watercourse is linked to the drainage of pyrite, which is very present in the subsoil. Extremophilic and endemic bacteria and algae colonize the river bed, forming a fragile biofilm that evokes the hot springs of Yellowstone Park in the USA.

860-288914 - Portrait of a Scallop, Blue Heron Bridge, Lake Worth Lagoon, Riviera Beach, Florida, USA, Atlantic Ocean.

860-288800 - R?o Tinto, Andalucia, Spain *** Local Caption *** R?o Tinto ("Red River") is very acidic (Ph 2) and has a deep reddish hue due to iron dissolved in water. The acidity of the watercourse is linked to the drainage of pyrite, which is very present in the subsoil. Extremophilic and endemic bacteria and algae colonize the river bed, forming a fragile biofilm that evokes the hot springs of Yellowstone Park in the USA.

860-288799 - R?o Tinto, Andalucia, Spain *** Local Caption *** R?o Tinto ("Red River") is very acidic (Ph 2) and has a deep reddish hue due to iron dissolved in water. The acidity of the watercourse is linked to the drainage of pyrite, which is very present in the subsoil. Extremophilic and endemic bacteria and algae colonize the river bed, forming a fragile biofilm that evokes the hot springs of Yellowstone Park in the USA.

718-2681 - Man rock climbing at ???The Pit??? in Sandy???s Canyon, Flagstaff, Arizona, USA

718-2676 - Bryce Canyon, Bryce Canyon National Park, Utah, USA

718-2667 - Art Deco Lifeguard hut on South Beach, Ocean Drive, Miami Beach, Miami, Florida, USA

718-2672 - Sandy beach, Fort Jefferson, Dry Tortugas National Park, Florida, USA

718-2686 - Man rock climbing, Coconino National Forest, Arizona, USA, North America

718-2669 - Art deco buildings on Washington Avenue, South Beach, Miami, Florida, USA

718-2675 - Smathers beach, Key West, Florida, USA

718-2671 - Sandy beach, Fort Jefferson, Dry Tortugas National Park, Florida, USA

718-2684 - Man rock climbing at ???The Pit??? in Sandy???s Canyon, Flagstaff, Arizona, USA

718-2679 - Sandstone formations, Bryce Canyon, Bryce Canyon National Park, Utah, USA

718-2683 - Man rock climbing at ???The Pit??? in Sandy???s Canyon, Flagstaff, Arizona, USA

718-2677 - Bryce Canyon, Bryce Canyon National Park, Utah, USA

718-2674 - Lighthouse, Key West, Florida, USA

718-2685 - Katahdin Stream Falls, Baxter State Park, Millinocket, Maine, USA

718-2670 - Ocean drive by night, South Beach, Miami, Florida, USA

718-2682 - Fort Lauderdale beach, Fort Lauderdale, Broward County, Florida, USA

718-2678 - Bryce Canyon, Bryce Canyon National Park, Utah, USA

718-2673 - Lighthouse, Key West, Florida, USA

718-2680 - Lower Calf Creek Falls, Grand Staircase Escalante National Monument, Utah, USA,

718-2668 - Art Deco Lifeguard hut on South Beach, Ocean Drive, Miami Beach, Miami, Florida, USA

718-2665 - Roseate Spoonbill (Platalea ajaja) in flight, Sanibel Island, J.N. Ding Darling National Wildlife Refuge, Florida, USA

718-2655 - Brown pelican (Pelecanus occidentalis) fishing, Key West, Florida, USA

718-2654 - Wood Stork (Mycteria Americana) in flight, Sanibel Island, J.N. Ding Darling National Wildlife Refuge, Florida, USA

718-2660 - Great white egret (Ardea alba) catching fish, Sanibel Island, J.N. Ding Darling National Wildlife Refuge, Florida, USA

718-2658 - Great blue heron (Ardea herodias) looking for food, Sanibel Island, J.N. Ding Darling National Wildlife Refuge, Florida, USA

718-2664 - American alligator (Alligator mississipiensis), Sanibel Island, J.N. Ding Darling National Wildlife Refuge, Florida, USA

718-2651 - Great white egret (Ardea alba) looking for food, Sanibel Island, J.N. Ding Darling National Wildlife Refuge, Florida, USA

718-2653 - American alligator (Alligator mississipiensis), submerging, J.N. Ding Darling National Wildlife Refuge, Florida, USA

718-2663 - Raccoon (Procyon lotor) scratching himself, Sanibel Island, J.N. Ding Darling National Wildlife Refuge, Florida, USA

718-2666 - Great white egret (Ardea alba) in flight, Sanibel Island, J.N. Ding Darling National Wildlife Refuge Florida, USA

718-2662 - Group of Great white egrets (Ardea alba) looking for food in a pond, J.N. Ding Darling National Wildlife Refuge, Florida, USA

718-2656 - Bryce Canyon, Bryce Canyon National Park, Utah, USA

718-2652 - Great white egret (Ardea alba) looking for food, Sanibel Island, J.N. Ding Darling National Wildlife Refuge, Florida, USA

1116-49191 - Female backpacker, backpacking with her dog on the Kesugi Ridge Trail in autumn, Denali State Park, Alaska, United States of America

1116-49682 - A windsurfer rides the breaking waves, Kihei, Maui, Hawaii, United States of America

1116-49472 - Man rowing a gondola, Mass Avenue Bridge, Charles River, Boston, Suffolk County, Massachusetts, USA

1116-49486 - People skating in an ice rink, Frog Pond, Boston Common, Boston, Suffolk County, Massachusetts, USA

1116-49736 - A double rainbow over the coastline of a Hawaiian island with mountains and turquoise water, Haena, Kauai, Hawaii, United States of America

1116-49208 - Man walking in slot canyon known as Owl Canyon, near Page, Arizona, United States of America

1116-49513 - Spectators watching a shuffleboard game

1116-49552 - Engineering students examining photovoltaic panel's structural design and mounting

1116-49597 - Man with spinal cord injury in wheelchair enjoying picnic with his wife

1116-49480 - Panoramic view of sunrise in downtown Boston with Boston Harbor, Cambridge and Boston Common and Tremont Street lit up, Boston, Suffolk County, Massachusetts, USA

1116-49567 - Senior people exercising in an exercising class

1116-49635 - Man adjusting braces on his knees after anterior cruciate ligament (ACL) surgery

1116-49702 - People snorkelling at Shark's Cove on the North Shore, Oahu, Hawaii, United States of America

1116-49470 - Players playing baseball, Langone Park, Boston, Suffolk County, Massachusetts, USA

1116-49649 - Waves off the Na Pali coast of Kauai, Kauai, Hawaii, United States of America

1116-49715 - Green sea turtles (Chelonia mydas), an endangered species, Hawaii, United States of America

1116-49198 - Man standing in a Slot Canyon known as Canyon X, near Page, Arizona, United States of America

1116-49543 - Portrait of a Muslim female nurse smiling

1116-49630 - Man after anterior cruciate ligament (ACL) surgery playing with his daughter at home

1116-49620 - Professor with muscular dystrophy and engineering students using manual to set up x-ray fluorescence experiment in a Laboratory

1116-49465 - Tree in a park with buildings in the background, Lo Presti Park, Boston Harbor, Boston, Suffolk County, Massachusetts, USA

1116-49569 - Senior people exercising in an exercising class

1116-49672 - A research diver from the MOC Marine Institute glues broken coral back together at Molokini Marine Preserve off the island of Maui, Hawaii. The coral is tagged and will be monitored, Maui, Hawaii, United States of America

1116-49483 - People skating in an ice rink, Frog Pond, Boston Common, Boston, Suffolk County, Massachusetts, USA

1116-49561 - Loading dock worker with spinal cord injury in a wheelchair moving a hand truck

1116-49701 - Torpedo display and tourists exploring a submarine at Pearl Harbour, Oahu, Hawaii, United States of America

1116-49461 - Soccer player viewed through goal net in a soccer field, Teddy Ebersol Field, Charles River, Boston, Suffolk County, Massachusetts, USA

1116-49190 - Tent and packraft on sandy beach on the Charley River, Yukon–Charley Rivers National Preserve, Alaska, United States of America

1116-49197 - Man standing in a Slot Canyon known as Canyon X, near Page, Arizona, United States of America

1116-49592 - Man with Friedreich's Ataxia with deformed hands using hand strengthening equipment

1116-49594 - Man with spinal cord injury in a wheelchair using hand and arm strengthening equipment

1116-49476 - Buildings in a city, Rose Kennedy Greenway, Boston, Suffolk County, Massachusetts, USA

1116-49727 - A young couple standing in front of a waterfall on private land on the island of Kauai, Kauai, Hawaii, United States of America

1116-49549 - Transportation engineer in wheelchair passing bollard at shipping port

1116-49545 - Doctors and nurses consulting on a computer in hospital

1116-49205 - Slot Canyon known as Mountain Sheep Canyon, Page, Arizona, United States of America

1116-49647 - Senior women playing shuffleboard

1116-49708 - An aerial panoramic view of world famous Ka'anapali Beach from one end to the other with hotels and West Maui Mountains in the background, Maui, Hawaii, United States of America

1116-49523 - Disabled man playing baseball with his son Disabled man smiling with his son with Down Syndrome

1116-49587 - Man with spinal cord injury in disability racing bike

1116-49199 - Slot Canyon known as Canyon X, near Page, Arizona, United States of America

1116-49201 - Man standing in a Slot Canyon known as Canyon X, near Page, Arizona, United States of America

1116-49147 - Dall Sheep rams (Ovis dalli) grazing on grass in the high country in Denali National Park and Preserve in Interior Alaska in autumn. Rams often travel in groups during this pre-rut time of year, Alaska, United States of America

1116-49605 - Senior man watering flowers while neighbor with walker and dog goes by

1116-49477 - American flag in front of a government building, Massachusetts State Capitol, Beacon Hill, Boston, Suffolk County, Massachusetts, USA

1116-49412 - Antelope Canyon, a slot canyon of Navajo Sandstone, Page, Arizona, United States of America

1116-49726 - A young man crouches next to a small stream running through a forest in Upcountry Maui, Maui, Hawaii, United States of America

1116-49515 - Rear view of a man watching a bocce ball game

1116-49640 - Two sisters looking at a digital tablet in the kitchen, one with learning disability

1116-49684 - A windsurfer rides the breaking waves, Kihei, Maui, Hawaii, United States of America

1116-49606 - Two disabled men sitting in wheelchairs and using a digital tablet, one with deformed hands

1116-49533 - Rear view of a senior man swimming in a swimming pool

1116-49679 - Snorkelers getting ready to enter the water from a snorkelling tour boat operated out of Maui, Hawaii. They are located next to the backwall of Molokini Crater which is a volcanic tuff cone, Maui, Hawaii, United States of America