A reticulated giraffe ('Giraffa camelopardalis reticulata') and a Rothschild's giraffe ('Giraffa camelopardalis rothschildi'), two giraffe subspecies, photographed at Rolling Hills Wildlife Adventure in Salina, Kansas.
Photograph by Joël Sartore, National Geographic Photo ArkA reticulated giraffe ('Giraffa camelopardalis reticulata'), a subspecies of giraffe, photographed at Gladys Porter Zoo in Brownsville, Texas.
Photograph by Joël Sartore, National Geographic Photo ArkA reticulated giraffe ('Giraffa camelopardalis reticulata'), a subspecies of giraffe, photographed at Rolling Hills Wildlife Adventure in Salina, Kansas.
Photograph by Joël Sartore, National Geographic Photo ArkA reticulated giraffe ('Giraffa camelopardalis reticulata'), a subspecies of giraffe, photographed at Gladys Porter Zoo in Sioux Falls, South Dakota.
Photograph by Joël Sartore, National Geographic Photo ArkA Masai giraffe ('Giraffa camelopardalis tippelskirchi'), a subspecies of giraffe, photographed at Houston Zoo in Texas.
Photograph by Joël Sartore, National Geographic Photo Ark