
American Shad
This ocean-going herring returns to fresh water each spring, reconnecting the Connecticut River with the Atlantic in one powerful migration.
Browse the published Explore collection for Maryland, United States. Open a discovery for its field guide, practical details, and background.

This ocean-going herring returns to fresh water each spring, reconnecting the Connecticut River with the Atlantic in one powerful migration.

Massachusetts protects a far-northern, geographically isolated population of this large basking turtle through one of America’s longest headstart programs.

America’s most widespread bear is often easier to recognize by tracks, clawed logs, and overturned stones than by a direct sighting.

A curved dorsal fin, robust gray body, and short bottle-shaped beak mark a dolphin that finds prey through both vision and echolocation.

Knobbed head, extraordinarily long flippers, and deeply notched tail flukes identify a whale that migrates between feeding and breeding seas.

Black cap, white cheeks, small bib, and a curious approach make this year-round northern songbird a foundational backyard identification.

Mottled bark-colored plumage, a dark tail band, and the male’s accelerating wing-drumming suit dense young forest better than open lawn.

Spotted breast, plain face, and a reddish tail contrasting with a browner back identify the thrush behind one of Vermont’s clearest woodland songs.

Dark eye stripe, kinked long wings, and reversible outer toes identify the fish specialist nesting beside Oregon waters.

A jaw extending behind the eye, deep body, and dark side stripe separate largemouth bass from their smaller-mouthed relatives.

A deep compressed body, dark ear flap, and blue-green cheek identify a widespread sunfish that rewards close looking.

A slender silver body, oblique spots, yellowish fins, and drumming muscles identify this estuarine member of the drum family.

Copper-bronze sides, blunt head, and one or more black spots near the tail identify a drum moving from marsh creek to open coast.

Orange wings with heavy black veins identify a migrant whose caterpillars can eat only milkweeds and whose journey outlasts any one summer adult.

Large size, bright green thorax, and a dark bull’s-eye on the forehead help identify a darner capable of continental movement.

Paired rows of yellow spots and an orange-centered hindwing eye distinguish a butterfly whose striped caterpillar feeds on carrots’ wild relatives.

A dark firefly with pale margins and an angular shield pattern, Say’s firefly turns summer dusk into species-specific communication.

Three broad leaves, three white petals, and a flower held above a single whorl mark Ohio’s woodland wildflower.

Opposite broad leaves, milky sap, round pink flower clusters, and warty pods identify a plant central to monarch development.

Glossy evergreen leaves and clustered pink-white cups patterned with ten pockets identify Connecticut’s state flower.

Spiny evergreen leaves, pale bark, and red winter fruit identify a native holly once central to Delaware wreath making.

Bristle-tipped leaf lobes, shallow-striped bark, and broad acorns distinguish New Jersey’s state tree from rounded-lobed white oaks.

Four-lobed leaves with a notched flat tip and green-orange tulip-like flowers identify one of eastern North America’s tallest hardwoods.

Flat short needles with pale undersides, tiny hanging cones, and drooping twig tips identify Pennsylvania’s state tree.

Red buds, flowers, leaf stalks, and paired winged seeds recur across the year on Rhode Island’s adaptable state tree.

Long flexible needles grouped in fives, slender cones, and layered horizontal branches identify the eastern white pine.

Arkansas’s state tree is a fast-growing southern pine whose long three-needle bundles, broad bark plates, and working-forest history shape the Coastal Plain.

Arkansas’s state bird patrols open neighborhood territories, flashing white wings and stitching other birds’ sounds into long improvised songs.

Louisiana’s state bird patrols bays in low files, then folds into spectacular headfirst dives for schooling fish near the surface.

Louisiana’s state tree is a deciduous conifer built for floodplain life, capable of forming ancient forests where buttressed trunks rise from seasonal water.

A small social bat winters in a few cold caves, migrates to summer forest roosts, and carries the name of the state where science first described it.

A warm-brown wren with a white eyebrow lives close to cover across South Carolina and serves as the state bird.

North America’s largest wolf spider patrols open ground after dark and is South Carolina’s official state spider.

This large striped butterfly, South Carolina’s state butterfly, moves between tree canopies, flowers, puddles, and host plants.

South Carolina’s state insect is a gray, green, or brown ambush predator of gardens, old fields, and woodland edges.

The Cone Collection places Matisse at the heart of a free art museum with global collections and sculpture gardens in Charles Village.

Manuscripts, ancient objects, jeweled craftsmanship, and European paintings fill a free museum beside Mount Vernon’s Washington Monument.

Mosaic-covered buildings and exuberant sculpture frame a museum devoted to self-taught artists at the foot of Federal Hill.

Historic locomotives and rail cars occupy the Mount Clare roundhouse, where Baltimore’s railroad story connects machinery with national change.

Art, family histories, work, and resistance trace African American life across four centuries of Maryland at this Inner Harbor museum.

Boatbuilding, oyster harvesting, decoys, and a relocated screwpile lighthouse make the Bay’s working culture tangible along the Miles River.

Southern Maryland’s ancient seas and living waterways meet in fossil displays, estuarine exhibits, historic boats, and Drum Point Lighthouse.

A star-shaped fort and open harbor views place the Battle of Baltimore and the origins of “The Star-Spangled Banner” on their actual ground.

Farm lanes, ridges, fields, and Antietam Creek preserve the landscape of the September 1862 battle near Sharpsburg.

Immersive exhibits connect Harriet Tubman’s family, faith, skills, and liberation work with Dorchester County’s fields, woods, and waterways.

The wooden dome crowns a working state capitol where Washington resigned his commission and Congress ratified the Treaty of Paris.

Archaeology and living-history interpretation recover a colonial capital on land already inhabited by the Yaocomaco people.

The William Brown House, reconstructed buildings, archaeology, and wooded gardens overlook the South River at a former colonial port.