Leopard frog images - Joel Sartore

A biologist holds up an endangered (IUCN) relict leopard frog (Lithobates onca) near the Hoover Dam. This animal's habitat has been reduced over the years substantially. Though it is a candidate species for federal protection, federal and state agencies are working to ensure that it doesn't need to be listed.

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A biologist holds up an endangered (IUCN) relict leopard frog (Lithobates onca) near the Hoover Dam. This animal’s habitat has been reduced over the years substantially. Though it is a candidate species for federal protection, federal and state agencies are working to ensure that it doesn’t need to be listed.

An endangered (IUCN) relict leopard frog (Lithobates onca) caught near the Hoover Dam. This animal's habitat has been reduced over the years substantially. Though it is a candidate species for federal protection, federal and state agencies are working to ensure that it doesn't need to be listed.

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An endangered (IUCN) relict leopard frog (Lithobates onca) caught near the Hoover Dam. This animal’s habitat has been reduced over the years substantially. Though it is a candidate species for federal protection, federal and state agencies are working to ensure that it doesn’t need to be listed.

An endangered (IUCN) relict leopard frog (Rana onca) caught near the Hoover Dam. This animal's habitat has been reduced over the years substantially. Though it is a candidate species for federal protection, federal and state agencies are working to ensure that it doesn't need to be listed.

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An endangered (IUCN) relict leopard frog (Rana onca) caught near the Hoover Dam. This animal’s habitat has been reduced over the years substantially. Though it is a candidate species for federal protection, federal and state agencies are working to ensure that it doesn’t need to be listed.

An endangered (IUCN) relict leopard frog (Rana onca) caught near the Hoover Dam. This animal's habitat has been reduced over the years substantially. Though it is a candidate species for federal protection, federal and state agencies are working to ensure that it doesn't need to be listed.

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An endangered (IUCN) relict leopard frog (Rana onca) caught near the Hoover Dam. This animal’s habitat has been reduced over the years substantially. Though it is a candidate species for federal protection, federal and state agencies are working to ensure that it doesn’t need to be listed.

An endangered (IUCN) relict leopard frog (Lithobates onca) caught near the Hoover Dam. This animal's habitat has been reduced over the years substantially. Though it is a candidate species for federal protection, federal and state agencies are working to ensure that it doesn't need to be listed.

Photo

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An endangered (IUCN) relict leopard frog (Lithobates onca) caught near the Hoover Dam. This animal’s habitat has been reduced over the years substantially. Though it is a candidate species for federal protection, federal and state agencies are working to ensure that it doesn’t need to be listed.

An endangered (IUCN) relict leopard frog (Lithobates onca) caught near the Hoover Dam. This animal's habitat has been reduced over the years substantially. Though it is a candidate species for federal protection, federal and state agencies are working to ensure that it doesn't need to be listed.

Photo

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An endangered (IUCN) relict leopard frog (Lithobates onca) caught near the Hoover Dam. This animal’s habitat has been reduced over the years substantially. Though it is a candidate species for federal protection, federal and state agencies are working to ensure that it doesn’t need to be listed.

An endangered (IUCN) relict leopard frog (Rana onca) caught near the Hoover Dam. This animal's habitat has been reduced over the years substantially. Though it is a candidate species for federal protection, federal and state agencies are working to ensure that it doesn't need to be listed.

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An endangered (IUCN) relict leopard frog (Rana onca) caught near the Hoover Dam. This animal’s habitat has been reduced over the years substantially. Though it is a candidate species for federal protection, federal and state agencies are working to ensure that it doesn’t need to be listed.

Chiricahua leopard frog (Lithobates chiricahuensis), a vulnerable (IUCN) and federally threatened species, at the Phoenix Zoo.

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Chiricahua leopard frog (Lithobates chiricahuensis), a vulnerable (IUCN) and federally threatened species, at the Phoenix Zoo.

Chiricahua leopard frog (Lithobates chiricahuensis), a vulnerable (IUCN) and federally threatened species, at the Phoenix Zoo.

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Chiricahua leopard frog (Lithobates chiricahuensis), a vulnerable (IUCN) and federally threatened species, at the Phoenix Zoo.

Chiricahua leopard frog (Lithobates chiricahuensis), a vulnerable (IUCN) and federally threatened species, at the Phoenix Zoo.

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Chiricahua leopard frog (Lithobates chiricahuensis), a vulnerable (IUCN) and federally threatened species, at the Phoenix Zoo.

Chiricahua leopard frog (Lithobates chiricahuensis), a vulnerable (IUCN) and federally threatened species, at the Phoenix Zoo.

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Chiricahua leopard frog (Lithobates chiricahuensis), a vulnerable (IUCN) and federally threatened species, at the Phoenix Zoo.

Chiricahua leopard frog (Lithobates chiricahuensis), a vulnerable (IUCN) and federally threatened species, at the Phoenix Zoo.

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Chiricahua leopard frog (Lithobates chiricahuensis), a vulnerable (IUCN) and federally threatened species, at the Phoenix Zoo.

Chiricahua leopard frog (Lithobates chiricahuensis), a vulnerable (IUCN) and federally threatened species, at the Phoenix Zoo.

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Chiricahua leopard frog (Lithobates chiricahuensis), a vulnerable (IUCN) and federally threatened species, at the Phoenix Zoo.

Chiricahua leopard frog (Lithobates chiricahuensis), a vulnerable (IUCN) and federally threatened species, at the Phoenix Zoo.

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Chiricahua leopard frog (Lithobates chiricahuensis), a vulnerable (IUCN) and federally threatened species, at the Phoenix Zoo.

Chiricahua leopard frog (Lithobates chiricahuensis), a vulnerable (IUCN) and federally threatened species, at the Phoenix Zoo.

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Chiricahua leopard frog (Lithobates chiricahuensis), a vulnerable (IUCN) and federally threatened species, at the Phoenix Zoo.

Chiricahua leopard frog (Lithobates chiricahuensis), a vulnerable (IUCN) and federally threatened species, at the Phoenix Zoo.

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Chiricahua leopard frog (Lithobates chiricahuensis), a vulnerable (IUCN) and federally threatened species, at the Phoenix Zoo.

Chiricahua leopard frog (Lithobates chiricahuensis), a vulnerable (IUCN) and federally threatened species, at the Phoenix Zoo.

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Chiricahua leopard frog (Lithobates chiricahuensis), a vulnerable (IUCN) and federally threatened species, at the Phoenix Zoo.

Central newts (Notophthalmus viridescens louisianensis) with southern leopard frog (Rana sphenocephala) eggs, a favorite food source, at Bennett Springs State Park near Lebanon, Missouri.

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Central newts (Notophthalmus viridescens louisianensis) with southern leopard frog (Rana sphenocephala) eggs, a favorite food source, at Bennett Springs State Park near Lebanon, Missouri.

Central newts (Notophthalmus viridescens louisianensis) with southern leopard frog (Rana sphenocephala) eggs, a favorite food source, at Bennett Springs State Park near Lebanon, Missouri.

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Central newts (Notophthalmus viridescens louisianensis) with southern leopard frog (Rana sphenocephala) eggs, a favorite food source, at Bennett Springs State Park near Lebanon, Missouri.

Central newts (Notophthalmus viridescens louisianensis) with southern leopard frog (Rana sphenocephala) eggs, a favorite food source, at Bennett Springs State Park near Lebanon, Missouri.

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Central newts (Notophthalmus viridescens louisianensis) with southern leopard frog (Rana sphenocephala) eggs, a favorite food source, at Bennett Springs State Park near Lebanon, Missouri.

Photo: A dead leopard frog that had been hit and killed on the highway near Watertown, NY.

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A dead leopard frog that had been hit and killed on the highway near Watertown, NY.

Photo: A dead leopard frog that had been hit and killed on the highway near Watertown, NY.

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A dead leopard frog that had been hit and killed on the highway near Watertown, NY.

Photo: A dead leopard frog that had been hit and killed on the highway near Watertown, NY.

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A dead leopard frog that had been hit and killed on the highway near Watertown, NY.

Photo: A dead leopard frog that had been hit and killed on the highway near Watertown, NY.

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A dead leopard frog that had been hit and killed on the highway near Watertown, NY.

Photo: A dead leopard frog that had been hit and killed on the highway near Watertown, NY.

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A dead leopard frog that had been hit and killed on the highway near Watertown, NY.

Photo: A dead leopard frog that had been hit and killed on the highway near Watertown, NY.

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A dead leopard frog that had been hit and killed on the highway near Watertown, NY.

Photo: A dead leopard frog that had been hit and killed on the highway near Watertown, NY.

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A dead leopard frog that had been hit and killed on the highway near Watertown, NY.

A leopard frog (Lithobates (Rana) pipiens) comes out at night to search for insects in Everglades National Park, Florida.

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A leopard frog (Lithobates (Rana) pipiens) comes out at night to search for insects in Everglades National Park, Florida.

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

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