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A partula snail (Partula nodosa) at the St. Louis Zoo’s Monsanto Insectarium.

This species is listed as extinct in the wild on the IUCN Red List.

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A male golden skiffia, or golden sawfin (Skiffia francesae) at Denver Zoo. This fish is extinct in the wild according to IUCN.

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A male golden skiffia, or golden sawfin (Skiffia francesae) at Denver Zoo. This fish is extinct in the wild according to IUCN.

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Butterfly splitfin (Ameca splendens) at the Tulsa Zoo. This species is extinct in the wild.

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Butterfly splitfin (Ameca splendens) at the Tulsa Zoo. This species is extinct in the wild.

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A Wyoming toad (Anaxyrus baxteri or Bufo baxteri) at the Omaha Zoo. (IUCN: Extinct in the wild; US: Endangered)

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A Wyoming toad (Anaxyrus baxteri or Bufo baxteri) at the Omaha Zoo. (IUCN: Extinct in the wild; US: Endangered)

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Butterfly splitfins or butterfly goodeids (Ameca splendens) at the Denver Aquarium, Denver, Colorado. This species is considered extinct in the wild.

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Butterfly splitfins or butterfly goodeids (Ameca splendens) at the Denver Aquarium, Denver, Colorado. This species is considered extinct in the wild.

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Butterfly splitfins or butterfly goodeids (Ameca splendens) at the Denver Aquarium, Denver, Colorado. This species is considered extinct in the wild.

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Butterfly splitfins or butterfly goodeids (Ameca splendens) at the Denver Aquarium, Denver, Colorado. This species is considered extinct in the wild.

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Butterfly splitfins or butterfly goodeids (Ameca splendens) at the Denver Aquarium, Denver, Colorado. This species is considered extinct in the wild.

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Butterfly splitfins or butterfly goodeids (Ameca splendens) at the Denver Aquarium, Denver, Colorado. This species is considered extinct in the wild.

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Butterfly splitfins or butterfly goodeids (Ameca splendens) at the Denver Aquarium, Denver, Colorado. This species is considered extinct in the wild.

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Butterfly splitfins or butterfly goodeids (Ameca splendens) at the Denver Aquarium, Denver, Colorado. This species is considered extinct in the wild.

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Mexican gray wolf pups at Wichita’s Sedgwick County Zoo. The Mexican gray wolf is thought to be extinct in the wild and numbers only about 148 in captivity, making it one of the Earths rarest mammals.

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Mexican gray wolf at Wichita’s Sedgwick County Zoo. The Mexican gray wolf is thought to be extinct in the wild and numbers only about 148 in captivity, making it one of the Earths rarest mammals.

Photo: Julie Jensen Director of Marketing | WVC O: 866.800.7326 | D: 702.443.9249 | E: j.jensen@wvc.org

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