extinction images - Joel Sartore

A bog turtle (Glyptemys muhlenbergii) an endangered (IUCN) and federally threatened species at the Atlanta Zoo.

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A bog turtle (Glyptemys muhlenbergii) an endangered (IUCN) and federally threatened species at the Atlanta Zoo.

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A critically endangered Rabbs’ fringe-limbed tree frog (Ecnomiohyla rabborum) is projected onto the Vatican in an effort to raise awareness for the extinction crisis.

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A rocky shoals spider lily (Hymenocallis coronaria) in Riverbanks Zoo in Columbia, SC.

A ringed map turtle, Graptemys oculifera, at the National Mississippi River Museum and Aquarium in Dubuque, IA. This species is listed as endangered (IUCN) and federally threatened.

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A ringed map turtle, Graptemys oculifera, at the National Mississippi River Museum and Aquarium in Dubuque, IA. This species is listed as endangered (IUCN) and federally threatened.

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An endangered (IUCN) and federally endangered San Esteban chuckwalla (Sauromalus varius) at the Arizona Sonora Desert Museum.

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An endangered (IUCN) and federally endangered San Esteban chuckwalla (Sauromalus varius) at the Arizona Sonora Desert Museum.

An endangered (IUCN) and federally endangered Virgin Islands boa (Chilabothrus granti) at Toledo Zoo.

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An endangered (IUCN) and federally endangered Virgin Islands boa (Chilabothrus granti) at Toledo Zoo.

A purple-banded sunbird (Nectarinia bifasciata microhychus) is projected onto the Vatican in an effort to raise awareness for the extinction crisis. Photo taken in Gorongosa National Park.

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A purple-banded sunbird (Nectarinia bifasciata microhychus) is projected onto the Vatican in an effort to raise awareness for the extinction crisis. Photo taken in Gorongosa National Park.

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A Mexican gray wolf is projected onto the Vatican in an effort to raise awareness for the extinction crisis.

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Coyote pups are projected onto the Vatican in an effort to raise awareness for the extinction crisis.

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A giant panda is projected onto the Vatican in an effort to raise awareness for the extinction crisis.

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A baby chimpanzee is projected onto the Vatican in an effort to raise awareness for the extinction crisis.

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A Sumatran tiger is projected onto the Vatican in an effort to raise awareness for the extinction crisis.

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An African male lion is projected onto the Vatican in an effort to raise awareness for the extinction crisis.

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Butterflies are projected onto the Vatican in an effort to raise awareness for the extinction crisis.

Picture of a vulnerable (IUCN) and federally threatened loggerhead sea turtle (Caretta caretta) at the Riverbanks Zoo, Columbia, South Carolina.

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A vulnerable (IUCN) and federally threatened loggerhead sea turtle (Caretta caretta) at the Riverbanks Zoo, Columbia, South Carolina.

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An Alabama canebrake pitcher plant (Sarracenia rubra ssp. alabamensis) at the Atlanta Botanical Garden, Atlanta, Georgia. (US: Endangered)

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An American chaffseed (Schwalbea americana) at the Atlanta Botanical Garden, Atlanta, Georgia. (US: Endangered)

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An American chaffseed (Schwalbea americana) at the Atlanta Botanical Garden, Atlanta, Georgia. (US: Endangered)

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Flattened musk turtles (Sternotherus depressus) (IUCN: Vulnerable, US: Threatened) at the Tennessee Aquarium, Chattanooga, Tennessee.

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Flattened musk turtles (Sternotherus depressus) (IUCN: Vulnerable, US: Threatened) at the Tennessee Aquarium, Chattanooga, Tennessee.

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Flattened musk turtles (Sternotherus depressus) (IUCN: Vulnerable, US: Threatened) at the Tennessee Aquarium, Chattanooga, Tennessee.

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A Key Largo woodrat (Neotoma floridana) (US: Endangered) at Disney’s Animal Kingdom. Fewer than 250 adults are believed left in the wild, in just two parcels of public land on Key Largo. Captive breeding efforts are underway at both Disney’s Animal Kingdom and the Lowry Park Zoo in Tampa, thought the captive population still numbers less than 50 animals.