Featured Species

eight small tan fish at the bottom of a tank

The peppered chub is a small minnow with a fusiform (tapering at both ends) body shape rapidly tapering to a conical head. Mouth position is inferior and horizontal, with two distinct pairs of barbels present. Taste buds are present over most of the body. Pigment is nearly confined to the dorsal...

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A pallid sturgeon swims along a rocky stream bed. The fish is long and slender, with whiskers and small ridges along its back and sides.

The pallid sturgeon was first recognized as a species different from shovelnose sturgeon by S. A. Forbes and R. E. Richardson in 1905 based on a study of nine specimens collected from the Mississippi River near Grafton, Illinois (Forbes and Richardson 1905). They named this new species...

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An Arkansas River Shiners swims broadside over coarse, colorful sand.
The Arkansas River shiner (ARS) is a small, streamlined minnow with a small, dorsally flattened head, rounded snout, and subterminal mouth. The ARS is silver in appearance with a dark blotch at the base of the dorsal (top) fin. Adults attain a maximum length of about 2 inches (Miller and Robison...
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white, translucent fish swims in cave stream

The Ozark Cavefish is a small 2-1/4 inch long, blind, pinkish-white fish. Due to the dark environments in which it resides, sight is unnecessary and the cavefish has no eyes.

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Two large white birds with spindly legs and black tips on their wings coming in for a landing in a wetland

The whooping crane occurs only in North America and is North America’s tallest bird, with males approaching 1.5 m (5 ft) when standing erect. The whooping crane adult plumage is snowy white except for black primaries, black or grayish alula (specialized feathers attached to the upper leading end...

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The Eskimo curlew, Numenius borealis Forster is a medium-sized shorebird (about 30 cm long) with a slender, slightly downcurved bill; dark crown and rather indistinct pale crownstripe; cinnamon tone above with whole underparts washed cinnamon; heavy v-shaped black marks and barring on breast...
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A male lesser prairie-chicken in the fading sunlight

The lesser prairie-chicken is a species of prairie grouse endemic to the southern and central high plains of the United States, commonly recognized for its feathered tarsi (legs), stout build, ground-dwelling habit, and lek mating behavior. The LEPC is closely related and generally similar in...

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Grey, white and black bird on sand in the foreground

Size: 18 cm (7.25 in) in length. Color: Breeding season: Pale brown above, lighter below; black band across forehead; bill orange with black tip; legs orange; white rump. Male: Complete or incomplete black band encircles the body at the breast. Female: Paler head band; incomplete breast band....

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A group of juvenile and adult red knot forage along the shoreline.

Length: 25-28 cm. Adults in spring: Above finely mottled with grays, black and light ochre, running into stripes on crown; throat, breast and sides of head cinnamon-brown; dark gray line through eye; abdomen and undertail coverts white; uppertail coverts white, barred with black. Adults in...

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Two curious animals with long necks and what looks like black masks around their eyes peek out from a burrow in the ground.

The black-footed ferret is 18 to 24 inches long, including a 5 to 6 inch tail. It weighs only one-and-a-half to two-and-a-half pounds, with males slightly larger than females. The black-footed ferret is well adapted to its prairie environment. Its color and markings blend so well with grassland...

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Gray bats flying under tree canopy outside of Sauta Cave

Long, glossy fur, light brown to brown. Ears dark, usually black; longer than in any other myotis; when laid forward extend 1/4 cm (7 mm) beyond nose. Tragus long and thin. Calcar keeled.

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Cluster of roosting bats.

The Indiana bat is a medium-sized Myotis, closely resembling the little brown bat (Myotis lucifugus) but differing in coloration. Its fur is a dull grayish chestnut rather than bronze, with the basal portion of the hairs on the back a dull-lead color. This bat's underparts are pinkish to...

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neosho mucket (Lampsilis rafinesqueana)

The Neosho Mucket (Lampsilis rafinesqueana) is a freshwater mussel in the family Unionidae. Frierson (1927) described the Neosho Mucket as a dimorphic (male and female shape differs) species; the male is elliptical, rounded before biangulate behind, with dorsal and basal margin equally arched,...

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Three different sizes of Rabbit's Foot Mussel
The rabbitsfoot is a medium to large mussel, elongate and rectangular, reaching 12 cm (6 inches) in length (Oesch 1984). Parmalee and Bogan (1998) describe the beaks as moderately elevated and raised only slightly above the hinge line. Beak sculpture consists of a few strong ridges or folds...
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Seven western fanshell on red mesh bag

Western fanshell is a medium-sized freshwater mussel found in the Lower Mississippi-St. Francis, Neosho-Verdigris and Upper White River basins within Arkansas, Kansas, Missouri and Oklahoma.

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A monarch butterfly on a yellow flower

Monarch butterflies are pollinators that are well known for their impressive long-distance migration and their recent declines. The species highlights the need for conservation efforts for all pollinators across the nation. Learn more about monarch conservation efforts, including what the U.S....

Close up of a male Southern Plains Bumble Bee face

The southern plains bumble bee can be found from the southeast to the plains and midwest of the United States. In July 2022, a petition to list the species as endangered under the Endangered Species Act was received by the U.S. Fish and Wildlife Service.

Historically, the southern plains...

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A western prairie fringed orchid in bloom

The western prairie fringed orchid is a terrestrial member of the orchid family. This smooth, erect, perennial herb grows to 1.2 meters [4 feet (ft)] tall. Plants have two to five fairly thick, elongate, hairless leaves each. The open, spike-like flowering stalk bears up to 24 showy, 2.5...

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