A sturgeon chub (Macrhybopsis gelida).
A Texas coral snake (Micrurus tener) at the Houston Zoo, Houston, Texas.
An endangered Asian elephant (Elephas maximus).
A Texas tortoise (Gopherus berlandieri) at the Houston Zoo.
A side-striped palm pit viper (Bothriechis lateralis) at the Houston Zoo, Houston, Texas.
A Parson’s chameleon (Calumma parsonii) at the Houston Zoo.
A Tamaulipan rock rattlesnake (Crotalus lepidus morulus) at the Houston Zoo, Houston, Texas.
A vulnerable (IUCN) wolverine (Gulo gulo) named Stinky, a candidate species for federal protection.
Masked bobwhite quail (Colinus virginanus ridgwayi), a federally endangered species, at the Phoenix Zoo. (US: Endangered)
A federally endangered light-footed clapper rail (Rallus longirostris levipes) at the Chula Vista Nature Center, Chula Vista, California.
An Attwater’s prairie-chicken at Attwater Prairie Chicken National Wildlife Refuge.
An endangered Attwater’s prairie-chicken over one of its last booming grounds in Texas’ coastal prairie.
Studio portrait of a juvenile raccoon.
A duck at Holmes Lake in Lincoln, Nebraska.
Black brant (Branta bernicla nigricans) at Teshekpuk Lake on Alaska’s North Slope.
Ducks silhouetted against a lake.
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