Joel Sartore Joel Sartore

National Geographic Photographer and Speaker

Keyword: side view

Caiman lizard (Dracaena guianensis). This is a semi-aquatic freshwater species from the Amazon Basin in South America. The long toes are for getting in and out of the muddy banks of the rivers where it lives.

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Caiman lizard (Dracaena guianensis). This is a semi-aquatic freshwater species from the Amazon Basin in South America. The long toes are for getting in and out of the muddy banks of the rivers where it lives.

A blue sucker (Cycleptus elongatus) from the Missouri Deptartment of Conservation. This species is in decline.

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A blue sucker (Cycleptus elongatus) from the Missouri Deptartment of Conservation. This species is in decline.

Geoffroy's side-necked turtle (Phrynops geoffroanus).

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Geoffroy’s side-necked turtle (Phrynops geoffroanus).

Evergreen toad (Incilius coniferus or Bufo coniferus). The species is widely distributed, and breeds in streams, rivers and shallow pools but is otherwise terrestrial and arboreal.

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Evergreen toad (Incilius coniferus or Bufo coniferus). The species is widely distributed, and breeds in streams, rivers and shallow pools but is otherwise terrestrial and arboreal.

Caiman lizard (Dracaena guianensis). This is a semi-aquatic freshwater species from the Amazon Basin in South America.

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Caiman lizard (Dracaena guianensis). This is a semi-aquatic freshwater species from the Amazon Basin in South America.

Picture of a Rabbs' fringe-limbed tree frog (Ecnomiohyla rabborum), a critically endangered freshwater species from Panama.

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Rabbs’ fringe-limbed tree frog (Ecnomiohyla rabborum), a critically endangered freshwater species from Panama. At the time this photograph was taken, in August of 2009, there were only five in captivity. The last one passed away in 2016, making the species extinct.

Picture of a Rabbs' fringe-limbed tree frog (Ecnomiohyla rabborum), a critically endangered freshwater species from Panama.

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Rabbs’ fringe-limbed tree frog (Ecnomiohyla rabborum), a critically endangered freshwater species from Panama. At the time this photograph was taken, in August of 2009, there were only five in captivity. The last one passed away in 2016, making the species extinct.

An endangered (IUCN) Cumberland darter (Etheostoma susanae), a candidate for federal listing.

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An endangered (IUCN) Cumberland darter (Etheostoma susanae), a candidate for federal listing.

A picture of a Mississippi map turtle (Graptemys pseudogeographica kohnii) at the Tennessee Aquarium.

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A Mississippi map turtle (Graptemys pseudogeographica kohnii) at the Tennessee Aquarium.

An endangered (IUCN) Cumberland darter (Etheostoma susanae), a candidate for federal listing.

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An endangered (IUCN) Cumberland darter (Etheostoma susanae), a candidate for federal listing.

An endangered (IUCN) Cumberland darter (Etheostoma susanae), a candidate for federal listing.

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An endangered (IUCN) Cumberland darter (Etheostoma susanae), a candidate for federal listing.

A gilt darter (Percina evides). This species is listed as endangered in New York, from which it has been largely extirpated. It is common in the southeastern U.S.

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A gilt darter (Percina evides). This species is listed as endangered in New York, from which it has been largely extirpated. It is common in the southeastern U.S.

A critically endangered (IUCN) spring pygmy sunfish (Elassoma alabamae), one of the “desperate dozen” imperiled species in the southeast U.S.

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A critically endangered (IUCN) spring pygmy sunfish (Elassoma alabamae), one of the “desperate dozen” imperiled species in the southeast U.S.

Spotted darter (Etheostoma maculatum) from the Elk River, West Virginia, population. (IUCN: Near Threatened)

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Spotted darter (Etheostoma maculatum) from the Elk River, West Virginia, population. (IUCN: Near Threatened)

Critically endangered (IUCN) Spring pygmy sunfish (Elassoma alabamae), one of the “desperate dozen” imperiled species in the southeast U.S.

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Critically endangered (IUCN) Spring pygmy sunfish (Elassoma alabamae), one of the “desperate dozen” imperiled species in the southeast U.S.

A critically endangered diamond darter (Crystallaria cincotta), one of the rarest fish in the U.S. and part of "The Desparate Dozen" imperiled fish species.

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A critically endangered diamond darter (Crystallaria cincotta), one of the rarest fish in the U.S. and part of “The Desparate Dozen” imperiled fish species.

Picture of a Kentucky arrow darter (Etheostoma sagitta spilotum), a species of concern.

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A Kentucky arrow darter (Etheostoma sagitta spilotum), a species of concern.

Picture of a Kentucky arrow darter (Etheostoma sagitta spilotum), a species of concern.

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A Kentucky arrow darter (Etheostoma sagitta spilotum), a species of concern.

A Roanoke logperch (Percina rex). (US: Endangered; IUCN: Vulnerable)

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A Roanoke logperch (Percina rex). (US: Endangered; IUCN: Vulnerable)

A picture of a Mississippi map turtle (Graptemys pseudogeographica kohnii) at the Tennessee Aquarium.

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A Mississippi map turtle (Graptemys pseudogeographica kohnii) at the Tennessee Aquarium.

Biologists use wet suits and snorkels to look for the critically endangered (IUCN) and federally endangered smoky madtom (Noturus baileyi) in Abrams Creek.

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Biologists use wet suits and snorkels to look for the critically endangered (IUCN) and federally endangered smoky madtom (Noturus baileyi) in Abrams Creek.

A redline darter (Etheostoma rufilineatum) collected from Abrams Creek in Tennessee.

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A redline darter (Etheostoma rufilineatum) collected from Abrams Creek in Tennessee.

Photo: A woman feeds fish at Conservation Fisheries, a rare fish propagation center in Knoxville, Tennessee.

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A woman feeds fish at Conservation Fisheries, a rare fish propagation center in Knoxville, Tennessee.

A vulnerable (IUCN) holiday darter (Etheostoma brevirostrum).

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A vulnerable (IUCN) holiday darter (Etheostoma brevirostrum).

Spotted darter (Etheostoma maculatum) from the Elk River, West Virginia, population. (IUCN: Near Threatened)

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Spotted darter (Etheostoma maculatum) from the Elk River, West Virginia, population. (IUCN: Near Threatened)

Spotted darter (Etheostoma maculatum) from the Elk River, West Virginia, population. (IUCN: Near Threatened)

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Spotted darter (Etheostoma maculatum) from the Elk River, West Virginia, population. (IUCN: Near Threatened)

A vulnerable holiday darter (Etheostoma brevirostrum).

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A vulnerable holiday darter (Etheostoma brevirostrum).

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

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