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ESA001-00064

An endangered Nichol turk’s head cactus (Echinocactus horizonthalonius var. nicholii) at the Arizona Sonora Desert Museum, Tucson, Arizona.

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A Pima pineapple cactus (Coryphantha scheeri var. robustispina) at the Arizona-Sonora Desert Museum, Tucson, Arizona.

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ESA001-00066

An endangered Santa Anna River woolystar (Eriastrum densifolium ssp. sanctorum) at the Santa Anna River, California. Shown on the plant is the common milkweed bug (Lygaeus kalmii).

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ESA001-00067

A federally endangered Santa Anna River woolystar (Eriastrum densifolium ssp. sanctorum) at the Santa Anna River, California.

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ESA001-00068

Endangered Florida perforate cladonia (Cladonia perforata) at the Archbold Biological Station, Venus, Florida.

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Endangered Florida perforate cladonia (Cladonia perforata) at the Archbold Biological Station, Venus, Florida.

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ESA001-00070

An endangered (IUCN) and federally endangered southern mountain yellow-legged frog (Rana muscosa).

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An endangered (IUCN) and federally threatened yellow-blotched map turtle (Graptemys flavimaculata) at the Tennessee Aquarium, Chattanooga, Tennessee.

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ESA001-00073

A Nashville crayfish (Orconectes shoupi) at the Tennessee Wildlife Resources Agency, Nashville, Tennessee. (IUCN: Endangered, US: Endangered)

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ESA001-00074

An endangered Higgins eye pearly mussel (Lampsilis higginsii) at the Genoa National Fish Hatchery, Genoa, Wisconsin.

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ESA001-00056

A blowout penstemon (Penstemon haydenii) (endangered) in Lincoln, Nebraska.

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A Mississippi sandhill crane (Grus canadensis pulla) at the Audobon Nature Institute, New Orleans, Louisiana.

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A federally endangered Karner blue butterfly (Lycaeides melissa samuelis) at the Toledo Zoo.

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ESA001-00076

Alfalfa plant bug (Adelphocoris lineolatus) on a blow-out penstemon, Penstemon haydenii, (endangered plant species) in Lincoln, Nebraska.

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ESA001-00059

A federally endangered Karner blue butterfly (Lycaeides melissa samuelis) at the Toledo Zoo.

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ESA001-00060

A federally endangered Karner blue butterfly (Lycaeides melissa samuelis) at the Toledo Zoo.

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A federally endangered Karner blue butterfly (Lycaeides melissa samuelis) at the Toledo Zoo.

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ESA001-00044

Vulnerable (IUCN) and federally endangered boulder darter (Etheostoma wapiti) at the Conservation Fisheries, Knoxville, Tennessee.

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ESA001-00046

A Nashville crayfish (Orconectes shoupi) at the Tennessee Wildlife Resources Agency, Nashville, Tennessee. (IUCN: Endangered, US: Endangered)

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ESA001-00047

A Nashville crayfish (Orconectes shoupi) at the Tennessee Wildlife Resources Agency, Nashville, Tennessee. (IUCN: Endangered, US: Endangered)

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ESA001-00048

A Nashville crayfish (Orconectes shoupi) at the Tennessee Wildlife Resources Agency, Nashville, Tennessee. (IUCN: Endangered, US: Endangered)

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ESA001-00049

An endangered Higgins eye pearly mussel (Lampsilis higginsii) at the Genoa National Fish Hatchery, Genoa, Wisconsin.

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ESA001-00050

A federally-endangered Alabama canebrake pitcher plant (Sarracenia rubra ssp. alabamensis) at the Atlanta Botanical Garden, Atlanta, Georgia.

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A federally-endangered Alabama canebrake pitcher plant (Sarracenia rubra ssp. alabamensis) at the Atlanta Botanical Garden, Atlanta, Georgia.

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ESA001-00052

Fringed campion flowers (Silene polypetala), a federally endangered plant native to rich hardwood forests of Georgia and Florida.

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A vulnerable (IUCN) and federally endangered red-cockaded woodpecker (Picoides borealis) at the North Carolina Zoo.

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A federally endangered Mississippi sandhill crane (Grus canadensis pulla) at the Audobon Nature Institute, New Orleans, Louisiana.

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ESA001-00055

A whooping crane (Grus americana) at the Audubon Nature Institute, New Orleans, Louisiana. (US: Endangered, IUCN: Endangered)

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ESA001-00040

A vulnerable (IUCN) and federally endangered American crocodile (Crocodylus acutus) at the Omaha zoo.

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A black-capped vireo (Vireo atricapilla) (vulnerable species) in Fort Hood, Texas.

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A critically endangered Clay’s hibiscus (Hibiscus clayi) at the U.S. Botanical Garden Production Facility, Washington, D.C.

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One of fewer than 10 woodland caribou (Rangifer tarandus caribou) in US zoos, Costello the caribou would stand patiently anywhere in exchange for a reward of grape leaves. Meanwhile in the wild, woodland caribou are nearly absent from the lower 48 states because they rely on old-growth forest habitat. Just a few holdouts still cross from Canada into northern Idaho and Washington. The total U.S. population is 40 individuals. (US: Endangered)

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Captive northern spotted owl (Strix occidentalis caurina) in a clearcut near Merlin, Oregon. Habitat loss and climate change are the two primary factors leading to the extinction of species. (US: Threatened)

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ESA001-00032

Federally endangered Kootenai River white sturgeon (Acipenser transmontanus) at the Kootenai Tribal Hatchery in Idaho.

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Hours-old least tern (Sterna antillarum) chicks sleep as they’re photographed near North Bend, Nebraska. (The interior population of this species is federally listed as Endangered.)

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With one of the world’s largest migratory routes, the red knot (Calidris canutus rufa) finds itself especially susceptible to any disruption in its feeding areas along the way. Overfishing of horseshoe crabs along the eastern coast of the US has taken away a much-needed source of energy for the species. (US: Candidate for listing)

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

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