A visit to Chernobyl.
A goldenrod field in South Carolina, one of the best places to observe plants and animals.
A 2,000-acre natural preserve on the banks of the Rio Grande which is home to unusual birds, mammals, butterflies and plants.
Wrangell-St. Elias National Park; glaciers; rivers; wilderness.
South Carolina; Francis Marion National Forest; Boneyard Beach; Bulls Island; Cape Romain National Wildlife Refuge.
Jackson Hole, Wyo.; Grand Teton National Park; buffalo; moose; elk; Snake River.
New Mexico; Bosque del Apache National Wildlife Refuge; eagles; snow geese; sandhill cranes; Chihuahuan Desert.
Arizona; Saguaro National Park; the Sonoran Desert; cactus.
Alaska; Denali National Park; grizzly bears; caribou; moose; Mount McKinley.
The world's first national park boasts more than two million acres of geysers, mountain and valley vistas, blue lakes and waterfalls.
Walking along the boardwalks of a diverse forest community in North America and a canoe ride at Cedar Creek.
Maine; Acadia National Park; Cadillac Mountain; beaches; Schoodic Peninsula.
Family units of birds enjoy their winter home near the Gulf of Mexico.
The site of the first American canal, which was an important place for trade and transportation.
Ospreys and the great horned owl abound in the Gulf Coast ecosystem of Honeymoon Island in Clearwater, Fla.
The mysteries of the Okefenokee Swamp in Georgia, the home to a variety of animals typical of Southeastern wetlands.
Pennsylvania; hawk migration; fall foliage.
Prairie dogs, eastern cottontail rabbits and herds of mule deer populate the Rocky Mountain Arsenal National Wildlife Refuge.
Exploring Florida sea life from the open beach side of St. Joseph Peninsula State Park to the barrier island on the other side.
Exploring a refuge in New York's Finger Lakes region that was created from the grinding and scouring of glaciers.
Colorado; Rocky Mountain National Park; elevation changes plant and animal communities.
The natural inhabitants along the banks of the Savannah River.
The Edge of Appalachia in southern Ohio consists of plant life that has existed for thousands of years.
Exploring the Blue Ridge Mountains and the landscape of Bull's Island off the Atlantic coast.
Uncovering the habitats of Roswell, N.M., including strange plants, moving sand dunes, limestone caves and juniper forests.
The Great Smoky Mountains National Park; wildflowers; butterflies.
Nature walk; pelicans; roseate spoonbills; freshwater environment.
Mountains; sea; wildlife refuge; Saluda River; swamp; Carolina Bay.
The wetlands of the Longleaf Pine Forest on Sandy Island off the coast of South Carolina.
Dinosaur tracks found in a riverbed near Glen Rose, Texas.
Nature walk; South Carolina; mountains; forest; streams; animals.
The wildlife that visits the shores of Lake Texoma in Texas.
The winter birds at Bon Secour National Wildlife Refuge on the Gulf of Mexico.
The plants and animals native to Vermont's Groton State Forest.
The wide variety of animals that make North America their home.
A comparison of the plant life found at the top and bottom of Idaho's Snake River plain.
The geologic history and unusual water system of Oregon's Malheur National Wildlife Refuge.
Changes in the piedmont and mountains of South Carolina following the arrival of Europeans.
The plant life around Walden Pond that inspired writer Henry David Thoreau.
The undisturbed ecosystem of the Ashepoo, Combahee and Edisto Rivers running along the coastal plain of South Carolina.
How the plant and animal communities change with the elevation in the Blue Ridge Mountains of western North Carolina.
The unusual combination of plants and animals that have accumulated in north central Nebraska along the Niobrara River.
The impact man has had on the wildlife near the Missouri River in western Iowa.
The migratory birds that come to Pamlico Sound and the Outer Banks of North Carolina.
The flowering fields and cicadas on the campus of Berry College in Rome, Ga.
Searching for the endangered red-cockaded woodpecker on the lower coastal plain of South Carolina.
Examining the biological diversity of the Costa Rican rain forest through old memories and new discoveries.
The desert environment of Arizona's Apache Trail, from Tonto National Forest to the Superstition Mountains.
The migratory birds that flock to Muscatatuck National Wildlife Refuge in early autumn.
The landscape and habitats created by glacial activity.
Studying the geology and plant life in the Organ Pipe Cactus National Monument of southern Arizona.
How plant communities change along the Saluda River in South Carolina.
The wildlife living in eastern Costa Rica's tropical rain forest, including the deadly fer-de-lance.
The dune community on the southern end of Lake Michigan in the early fall.
The glacial sculpting that has shaped the Canadian Rockies, plus the large wildlife of Jasper National Park.
The birds, monkeys and wide variety of flora that exist in the forests of northwestern Costa Rica.
Exploring the history of Nebraska at the Wildcat Hills, Scott's Bluff and Oregon Trail nature centers.
The rock formations and indigenous wildlife found in Utah's Zion National Park.
Spring flowers, migratory birds and alligators in South Carolina's Santee National Wildlife Refuge.
The erosion-carved limestone monuments in Utah's Bryce Canyon.
The geology of Cape Breton Island, Nova Scotia, and area wildlife, including moose, pilot whales and bald eagles.
How caves were formed at Carlsbad, N.M.; the area's plants and animals.
Nesting birds and basic beachcombing along the South Carolina coast.
Dramatic tidal changes and plant fossils are found along the Bay of Fundy shoreline in Nova Scotia, Canada.
A springtime walk through the Appalachian highlands along the Tennessee-North Carolina border.
The effects of Hurricane Andrew on the Florida Everglades and its wading birds.
Desert and fossil reefs explored at Guadalupe Mountains National Park in West Texas.
Louisiana's marshy Sabine National Wildlife Refuge is home to waterfowl, alligators, and nutria.
The Laguna Atascosa National Wildlife Refuge; green jays; indigo snakes; wading birds.
Observing wading birds at the Big Cypress National Preserve near Naples, Fla.
Diverse habitats within the Paynes Prairie State Preserve near Gainesville, Fla.
Alaska; Kenai National Wildlife Refuge; Denali National Park and Preserve; Mount McKinley.
Virginia; Chincoteague National Wildlife Refuge; migratory birds.
A 1995 visit to Bulls Island, S.C., to see how the area is doing six years after Hurricane Hugo's fury.
An Atlantic white cedar swamp and other coastal ecosystems found at the Cape Cod National Seashore in Massachusetts.
Oregon; Crater Lake; Mount Mazama; Wizard Island; plants and animals.
Exploring the natural beauty of California's Death Valley National Park.
Grizzlies, wolves and other wildlife are observed near Mount McKinley in Alaska's Denali National Park.
Underground caverns in eastern Kentucky that are the winter home of the endangered Indiana bat.
Encountering moose and caribou in Alaska's Kenai National Refuge.
Wildlife returns to its old habitat in Washington State 15 years after Mount St. Helens erupted.
Sequoia National Forest; glacier-torn caverns; mountain streams.
A former rice plantation transformed into a golf course; red-shouldered hawks and butterflies sighted in South Carolina.
Mammoth Hot Springs; Hayden Valley; Lower Yellowstone Falls; Madison River.
The 2 million acre Dixie National Forest stretches across Utah.
A trek through the bogs and coniferous forests of northeastern Vermont.
The wildlife, badlands and grasslands of North Dakota's Theodore Roosevelt National Park.
Rare birds, fern forest, lava tube at Hawaii Volcanoes National Park.
Natural bridges and red sandstone bluffs in Utah's Cathedral Valley.
A tour of North Carolina's wetlands region and one of the largest Carolina Bays; Venus flytraps.
The hot springs, geysers, mud volcanoes, waterfalls and wildlife of Yellowstone National Park in Wyoming.
An exploration of the changes in vegetation on a trek down New Hampshire's Mount Washington.
Touring the grasslands and ponderosa pine forests of Custer National Forest in eastern Montana; upland sandpiper sighting.
A rare silversword flower is discovered on Haleakala, a dormant volcano on Hawaii's island of Maui.
A visit to Fort Jackson in South Carolina, home of the U.S. Army base and a wildlife preserve.
Rudy Mancke and Jim Welch share creature trivia from the collection of artifacts assembled during the series' 10 years.
Walking through a mixed hardwood forest's fall foliage in western Maryland's Allegheny Mountains.
Western grebes, white pelicans and Canada geese are sighted near Utah's Great Salt Lake.
Connecticut's hemlock forest; Eight Mile River; Chapman Falls.
Snow geese, sandhill cranes, bald eagles and red-tailed hawks fly through New Mexico's Chupadera mountains.
A pit viper and butterflies are observed near Siberia's Lake Baikal.
Rudy Mancke and Jim Welch explore Russia, including Alexander Park in Pushkin, St. Petersburg and the Talga Forest.
Waterfowl, raccoons and snow geese are observed at a wildlife refuge near Dover, Del.
Searching for fossils among the sagebrush and desert shrubs near Kemmerer, Wyo.
Exploring the fields and forest around Rhode Island's Trustom Pond and observing nesting piper plovers.
Exploring the lava formations in New Mexico's Tularosa Valley.
A winter hike in Virginia, from White Top Mountain to warm meadows below Mount Rogers.
Roadrunners and horned lizards share the trip around the great bend of the Rio Grande River.
Nature survives in an urban lot.
Hiking trails in New York State's Adirondack Mountains during fall foliage season.
Items collected by hosts Rudy and Jim on their nature walks, including antlers, whale fossils and a mastodon tooth.
The Necedah National Wildlife Refuge in Wisconsin, on the Mississippi Flyway, is an unglaciated area filled with wetlands.
The summit of Mt. Holyoke offers a superb view of the Connecticut River Valley.
In Idaho's Coeur D'Alene National Forest, coyotes and elk live beneath old red cedar trees.
At Effigy Mounds National Monument in Iowa, prehistoric animal-shaped sculptures overlook the Mississippi.
Exploring the maritime forest and beaches of Wassaw National Wildlife Refuge; bottlenosed dolphin sighting.
The Mississippi no longer flows through Mingo National Wildlife Refuge, where a turkey vulture's nest is discovered.
Many rare plants and animals live on Forty Acre Rock, a large slab of granite in South Carolina.
The Santa Ana National Wildlife Refuge is home to rare subtropical birds.
Reelfoot Lake's corner of Tennessee, once shaken by earthquakes, is now a peaceful home for rare birds.
Goats, mule deer and marmots trek the Going-To-The-Sun Highway in Montana's Glacier National Park.
Jim Welch and Rudy Mancke study plants, animals and history of the Riverbanks Zoo in Columbia, S.C.
Jim Welch and Rudy Mancke investigate damage wreaked by Hurricane Hugo on Bull's Island, S.C.
A visit to Pyramid Lake near Reno, Nev., home of thousands of white pelicans.
North American birds from past shows, including woodpeckers, song birds, and other shore and wading birds.
Favorite North American birds from past shows, including the common loon, birds of prey and whooping cranes.
Exploring a 19,000-acre collection of parklands near Cleveland.
Exploring a 300-acre limestone quarry on South Carolina's coastal plain where baleen whale bones were found.
Fall foliage in the Blue Ridge Mountains and the foothills of South Carolina.
Fall colors and wolf tracks in Superior National Forest, Minn.
A fox snake and butterflies are observed on Lake Erie's Kelleys Island.
The island and shoreline at Lake Murray, an earthen dam lake in South Carolina.
The creeks, lakes and sandstone outcrops found in the Crab Orchard National Wildlife Refuge in Illinois.
Exploring the Sand Harbor trails near Lake Tahoe, the largest Alpine lake in North America.
Wildlife living along the bluffs in Nebraska's Indian Cave State Park.
The diversified plant life found in Oregon's Siskiyou National Forest and the Klamath Mountains.
Exploring the woodlands, meadows and mountains of Baxter State Park in northern Maine.
The wildlife living on Cadillac Mountain and along pond edges in Maine's Acadia National Park.
The centuries-old coastal redwoods of Northern California's Redwood National Park shelter a variety of creatures.
Forest creatures survive despite damage caused by the gypsy moth in Shenandoah National Park.
The flora and fauna found on the inland peninsula between Kentucky and Tennessee.
Rudy and Jim look at the status of wildlife on Bull's Island after Hurricane Hugo.
The various habitats found on Bull's Island in the Cape Romain Wildlife Refuge.
The flora and fauna of an Appalachian cove in the Blue Ridge Province, S.C.
Springtime means new life for plants and animals in the waters of Minnesota's Agassiz National Wildlife Refuge.
Ice Age plants still flourish in the Great Smoky Mountains near Maggie Valley, N.C.
Florida's Merritt Island National Wildlife Refuge and Cape Canaveral must coexist as neighbors despite their different purposes.
Tennessee's Cedar Glades, a red cedar forest once covered by ocean water.
New Jersey's Pine Barrens shelter a surprising variety of wildlife amidst urban sprawl.
South Dakota's Custer State Park encompasses the Black Hills, once sacred mountains to the Sioux.
South Carolina's Peachtree Rock nature conservancy has characteristics of both badlands and mountain areas.
The Serpentine Barren near Nottingham, Pa. is populated by a variety of strange plants.
The wildlife living along Southern California's Tijuana River estuary.
Exploring the Natchez Trace, a pioneer road connecting Nashville, Tenn., with the Mississippi River.
Carnivorous plants, poisonous snakes and woodpeckers live in Cartwheel Bay, S.C.
America's first national monument, east Wyoming's Devil's Tower, has spawned many legends.
Plant life flourishes after a wet winter in California's Anza-Borrego Desert State Park.
DeSoto State Park in northern Alabama boasts the deepest gorge east of the Grand Canyon.
The Ding Darling National Wildlife Refuge on Florida's Sanibel Island welcomes exotic birds.
Buffalo, prairie dogs and antelope play in South Dakota's fossil rich Badlands National Park.
Georgia's "wet prairie," the swamp more commonly known as the Okefenokee.
Glaciers and wind created the 300-foot Warren Dunes, which now shelter wildflowers growing on Lake Michigan's shore.
Desert cottontails gave western Colorado's arid Rabbit Valley its name.
Migratory birds flock to Oklahoma's Salt Plains National Wildlife Refuge.
Beetles, bees, spiders and mantids are observed as they prepare for winter.
Studying seashells, wildflowers and grassland inhabitants on Padre Island, Texas.
The flowers, insects and fossils found near Clifty Falls in southwest Indiana.
Colorado's San Juan Mountains were molded by glaciers and mined by gold diggers.
The Congaree Swamp National Monument in central South Carolina is dominated by massive hardwood trees.
Exploring the Flint Hills, a hilly area of eastern Kansas where wild flowers and grasses thrive.
A visit to Cumberland Falls, on Kentucky's Cumberland River.
Animals found in the Aransas National Wildlife Refuge near Corpus Christi, Texas.
The Colorado National Monument's sandstone canyons were formed by water.
How wildlife adapts to the cold in the Appalachian Mountains.
A study of the Hoh rainforest in Washington state's Olympia National Park.
The wildlife that lives near Sabino Creek in Arizona's Sonoran Desert.
The wildlife of Florida's Apalachicola Bluffs and the Apalachicola River.
A Santee River plantation's rice fields are home to diverse wildlife in South Carolina.
The diverse hardwood forest found along northern Arkansas' Buffalo River.
Wind, sea and weather form a contoured landscape.
The varying plants and animals found at different altitudes within Arizona's Santa Catalina Mountains.
Trawling along the South Carolina coast.
The wildlife of Cape San Blas -- St. Joseph's Bay on the Florida panhandle.
The underground world of Blanchard Springs Caverns, Ark., and nearby wildlife.
Mount Rainier's volcanic slopes support many wildflower species.
The Saguaro National Monument shelters gila woodpeckers and cactus wrens.
Observing changing leaf colors in common New England deciduous trees during an autumn walk.
The variety of habitats found in Nag's Head Woods and the surrounding sand dunes and ponds.
The formation of Florida's Lake Okeechobee and the modifications humans have made to the lake.
A descent of Vermont's Mount Mansfield, examining geological history and plant changes.
Plants and animals of a magnolia forest.
Plants and wildlife of North Carolina mountains.
Exploring Corkscrew Swamp, an Audubon sanctuary near Naples, Fla.
The diverse natural areas found within Florida's Everglades National Park.
Identifying plant and animal remains that are washed ashore.
The wildlife found in forest and field environments in South Carolina's Piedmont region.
Geological history of Vermont's Button Bay State Park on Lake Champlain's shore.
Four Holes Swamp, an Audubon sanctuary on South Carolina's coastal plain.
Exploring North Carolina's Outer Banks, from Nags Head to Hatteras Lighthouse.
A fall trek through Carolina mountains.
Indigenous and imported plants and animals inhabit cities.
A canoe trip.
Life on the swamp's floating islands.
Wildlife in the Magnolia Gardens of Charleston, S.C.
Five carnivorous plants of South Carolina.
Eastern U.S. birds and endangered species.
Change and adaptation on a barrier island.
Scrutinizing plant anatomy in a hardwood forest.
Examining fossils in a limestone quarry.
Following the North Carolina river's course.
Interrelationships of ocean and shore life.
Refuge life thrives.