All Seasons

Season 1

  • S01E01 A Twentieth Century Medicine Man

    • January 13, 1991
    • PBS

    Bill Kurtis journeys to the northern tip of Brazil where ethnobotanist Mark Plotkin studies among the Trio Indians. A Trio healer takes Dr. Plotkin and Kurtis deep into the Amazon rain forest and reveals which plants have medicinal uses. The search for knowledge continues at the National Cancer Institute near Washington, D.C., where thousands of previously unknown plant species, collected by ethnobotanists, are tested as possible cures for cancer and AIDS. Also includes "Flight for Survival" investigates the habits and habitats of the American Bald Eagle, including methods used to bring it back from near extinction.

  • S01E02 Mystery of the Lines

    • January 20, 1991
    • PBS

    Chicago-based astronomer Phyllis Pitluga and German scientist Maria Reiche discuss their conclusions that the Nazca lines of Peru are part of a pre-historic agricultural calendar.

  • S01E03 Flight for Survival

    • January 27, 1991
    • PBS

    Species preservation efforts are demonstrated by scientists trying to save eagles from extinction. Presented are James Greer at Lake of the Woods in Ontario, Canada.

  • S01E04 The Laser’s Edge

    • February 3, 1991
    • PBS

    Witness an operation in which Dr. Cerullo penetrates a patient's brain and removes two tumors.

  • S01E05 Profile in Terror

    • February 17, 1991
    • PBS

    John Douglas, head of the FBI behavioral science division, shows how his team uses psychological profiles to catch serial killers.

  • S01E06 Why is This Dolphin Smiling?

    • February 24, 1991
    • PBS

    To learn more about the dolphin's seemingly profound intelligence and exceptional communication ability, Bill Kurtis goes to the experts.

  • S01E07 Crisis Planet Earth

    • March 3, 1991
    • PBS

    An infrared scanning device is used to take the Earth's temperature.

  • S01E08 Islands in the Jungle

    • March 17, 1991
    • PBS

    Dr. John Fitzgerald, ornithologist, discovers a new species of bird.

  • S01E09 Mystery Through the Lens

    • March 24, 1991
    • PBS

    Scientist Walter McCrone demonstrates how optical microscopes are used to solve scientific mysteries: murder, Shroud of Turin, a lost Manet painting.

  • S01E10 Into the Depths

    • March 31, 1991
    • PBS

    Scientists travel to the bottom of Lake Superior to measure pollution damage and to observe the lake's ability to clean itself.

  • S01E11 From Beneath the Ashes

    • April 7, 1991
    • PBS

    Examines the beneficial role played by fire in the natural environment. Documents renewal of the ecosystem following the devastating Yellowstone fires in 1988 and successful attempts to restore midwestern prairies through the use of controlled burning.

  • S01E12 In a Galaxy Far, Far Away

    • April 14, 1991
    • PBS

    Looks at the software created by computer graphics developer Bob Drebin and the effect his programs have in the motion picture and medical industry.

  • S01E13 Miracle Babies

    • April 21, 1991
    • PBS

    Doctors save a newborn with a fatal lung disease by recirculating his blood for him with an extracorporeal membrane oxygenation machine until his lungs can function on their own.

Season 2

  • S02E01 Journey to Save a Crane

    • January 5, 1992
    • PBS

    Dr. George Archibold of the International Crane Foundation embarks on a dramatic mission to help save a rare crane species in remote Western Siberia.

  • S02E02 Voices in the Stones

    • January 12, 1992
    • PBS

    Dr. Linda Schele of the University of Texas takes Bill Kurtis to Copán, Honduras, and back more than 1,000 years into the pre-Columbian culture of the Maya.

  • S02E03 Test Tube Zoo

    • January 19, 1992
    • PBS

    Looks at endangered species which disappear at the rate of 100 species a day, mostly due to habitat destruction, pollution, disease and poaching. Zoo scientists have started a plan of action to increase populations of endangered species using reproductive technology. Spiral of Silence discusses how geneticists from the University of California at Berkeley are studying the genes of a Costa Rican family to determine why half of a generation became deaf.

  • S02E04 The Beauty of the Beast

    • January 26, 1992
    • PBS

    Scientists study the natural behavior of grizzly bears at Yellowstone National Park.

  • S02E05 The New Science of Sport

    • February 2, 1992
    • PBS

    Two segments join scientists who examine how muscles, bones, and tissue function in top athletes; and how physics can be found in everyday life, including roller coasters and wave pools.

  • S02E06 The Storm Within

    • February 9, 1992
    • PBS

    A neurosurgeon, Dr. Ben Carson of Johns Hopkins Hospital, performs brain surgery on a ten-year-old boy who is afflicted with Rasmussen's encephalitis.

  • S02E07 The New Language of Science

    • February 16, 1992
    • PBS

    Shows how supercomputers can create visualization of complex scientific concepts.

  • S02E08 Rivers of Fire

    • February 23, 1992
    • PBS

    A volcanologist tries to learn to predict volcanic eruptions by studying the Kilauea Volcano on the island of Hawaii, and two scientists attempt to predict earthquakes using modern technology and paleoseismological evidence of past earthquakes.

  • S02E09 Creating an Ocean

    • March 1, 1992
    • PBS

    Documents the three-year effort of scientists at Chicago's Shedd Aquarium to build the largest indoor aquarium in the world, along with the species-collecting expedition in Canada.

  • S02E10 Rock 'n Roll Physics

    • March 8, 1992
    • PBS

    Chris Chiaverina and Jim Hicks have found a way to make physics fun. They use an amusement park as a giant classroom and challenge the students to figure out the physics of the rides.

  • S02E11 Fragments of Time

    • March 15, 1992
    • PBS

    Two paleontologists search for evidence of how the dinosaurs began by returning to the site in Argentina where, in 1988, they discovered the fossilized remains of a specimen of the earliest known dinosaur.

  • S02E12 Catching the Sun

    • March 22, 1992
    • PBS

    The next advance in particle science may come from an experiment that has been under way for the last 30 years, deep in a South Dakota gold mine.

  • S02E13 Spacefarm: The Adventure of Discovery

    • April 12, 1992
    • PBS

    Researchers at Tuskegee University in Alabama study the sweet potato in order to find a way to cultivate produce in space.

  • SPECIAL 0x1 River of Doubt

    • December 27, 1992

    This 1992 expedition retraces the steps of Theodore Roosevelt on his 1914 exploration of the Amazon and Rio Duvida (renamed Rio Roosevelt) through the Brazilian wilderness, with a Brazilian/American team led by Charles Haskell and Teddy's great grand-son, Tweed Roosevelt (team member).

  • SPECIAL 0x2 Declassified : U.S. Navy Dolphins

    • February 24, 1993

    U.S. Navy scientists believe that if we can understand how the dolphins swim, how deep they can dive, and how they communicate, it could be a key to unlock a whole new world under the water.

Season 3

  • S03E01 The Fragile Fossil

    • March 28, 1993
    • PBS

    Presents one story in the fight to save the black rhinoceros from extinction as a team of scientists from Zimbabwe and the United States engage in that effort beginning in Hwange National Park and continuing in the United States. Focuses on dehorning and translocation as techniques for saving this endangered species.

  • S03E02 The Dream Fulfilled

    • April 4, 1993
    • PBS

    Dr. Levi Watkins talks to Bill Kurtis about implanting Pacemakers in patients with heart problem in the Johns Hopkins Hospital in Baltimore, Maryland. He also talks about his memories of Martin Luther King, Jr. and his struggles for equal rights in America.

  • S03E03 The Great Chicago Flood

    • April 11, 1993
    • PBS

    Discusses the April 13, 1992 flood of the Chicago Loop, focusing on the engineering problems that were presented in stopping the flood and draining the water from basements and underground tunnels.

  • S03E04 Running out of Time

    • April 18, 1993
    • PBS

    The world cheetah population is slowly dying. Dan and Laurie Kraus have moved to Namibia in southern Africa, home to the largest remaining cheetah population, to stop the trend of local farmers killing the cheetahs. Also included is a fascinating look at genetics; you'll learn why the inbred zoo populations are vulnerable to disease and incapable of reviving the species.

  • S03E05 Endeavour

    • April 25, 1993
    • PBS

    Focuses on astronaut Mae Jemison and the Space Shuttle Endeavour's September, 1992 mission. Observes a frog embryology experiment conducted by Jemison during the mission, designed to help scientists understand how the zero-gravity environment affects the reproduction process.

  • S03E06 Don't Judge a Book

    • May 2, 1993
    • PBS

    Focuses on Dr. Raphael Lee and his new techniques for scar reconstruction.

  • S03E07 Orphans of Time

    • May 9, 1993
    • PBS

    Examines efforts in Hawaii and Greece to study and preserve endangered monk seal populations. Highlights a program at the Hawaii Institute for Marine Biology to inject a testosterone-reducing drug into male seals in an effort to prevent them from killing females during the mating season.

  • S03E08 Super Seeds

    • May 16, 1993
    • PBS

    Researchers take viewers into their labs to explain biotechnology that is involved in creating improved crops, soil and fertilizer.

  • S03E09 Spiral of Silence

    • May 23, 1993
    • PBS

    Discusses how geneticists from the University of California at Berkeley are studying the genes of a Costa Rican family to determine why half of a generation became deaf.

  • S03E10 Dive into Darkness

    • May 30, 1993
    • PBS

    Bill Kurtis goes cave diving in the mysterious underwater caverns beneath the Bahama Islands. In one segment biologist Jill Yager shows where she first discovered a living fossil, the Remipedia, an unknown species of crustacean 150 million years old. In another segment, naturalist Ben Rose takes the crew on a coral reef tour in which feeding sharks is part of the fun.

  • S03E11 Beyond the Looking Glass

    • June 6, 1993
    • PBS

    Bill Kurtis examines the latest high tech development, virtual reality. He discusses the applicability of virtual reality in science in the future with several experts in the field.

  • S03E12 The Restless Earth

    • June 13, 1993
    • PBS

    Presentation of two scientists' approach to earthquake prediction: Al Lind using modern technology and paleoseismologist Gary Carver using evidence of past earthquakes.

  • S03E13 Children of the River

    • June 20, 1993
    • PBS

    A team of scientist empowering children to use science to reclaim the rivers of the world.

Season 4

  • S04E01 Noahs : The Keepers of the Ark

    • September 29, 1993
    • PBS

    Learn how three veterinary scientists use modern medical technology to reverse the effects of extinction.

  • S04E02 In the Footsteps of Doctor Livingstone

    • February 23, 1994
    • PBS

    Retracing the last expedition of David Livingstone across Africa in 1872, with a team led by Charles Haskell, Elizabeth McKnight and David Livingstone Wilson, the explorer's great-grandson.

  • S04E03 On the Trail of a Killer Virus

    • May 18, 1994
    • PBS

    Traces the discovery and identification of the deadly hantavirus strain which broke out in New Mexico in May of 1993, focusing on the role of the U.S. Centers for Disease Control and Prevention.

Season 5

  • S05E01 Skeletons in the Sand

    • October 19, 1994
    • PBS

    Deep in the Sahara Desert, Paul Sereno and his team dig through a massive dinosaur graveyard, uncovering two new species. Demonstrates the rigors of the expedition and the historical impact of Dr. Sereno's discoveries.

  • S05E02 The Secrets of Underwater Volcanoes

    • November 23, 1994
    • PBS

    500 miles off the coast of Mexico and 2 miles below the ocean surface, on a quest to unlock the mysteries of underwater volcanoes, the crew of a research submarine reveal how the ocean floor canyons that make up the mid-ocean ridge were, and are still, being formed. Also introduces viewers to lifeforms that survive in the extremely hot, highly toxic environment around thermal vents.

  • S05E03 The Science of Star Trek

    • January 18, 1995
    • PBS

    Describes how science fact and science fiction are woven together to create episodes of TV's Star Trek series, and the influence of Star Trek on the pursuit of science and technology in real life.

  • S05E04 Secrets of an Ancient Culture

    • February 1, 1995
    • PBS

    Shows and watches Gillies Turle on the steps of his journey to the scientific process of exploring the Maasai's culture. Along the way, we see loibons, or medicine men, perform their secret rituals and young men training to become morani, or warriors, gaining a glimpse at the ways of the Maasai themselves, the quiet nomadic people indigenous to Kenya and Tanzania.

  • S05E05 The Sounds of Discovery

    • April 5, 1995
    • PBS

    Discusses how scientists and the U.S. Navy are working together to understand the language of whales so as to better understand the nature of whales.

  • S05E06 Environmental S.W.A.T. Team

    • May 3, 1995
    • PBS

    Conservation efforts in the Puerto Suarez and Tucavaca areas of eastern Bolivia, where forests are threatened with extinction by logging and agriculture, are performed by scientists of the American-Bolivian rapid assessment team who have three days to assess insects, birds, mammals, and plants and deliver the data to higher authorities to prove that the value of the forests is so great they should be preserved.

  • S05E07 The Crystal Laboratory

    • June 6, 1995
    • PBS

    This program focuses on some of the many research projects underway in Antarctica, and visits some of its features.

  • S05E08 Expedition Inspiration

    • July 12, 1995
    • PBS

    In January 1995, Expedition Inspiration culminated a year of fund-raising efforts, specifically dedicated to the fight against breast cancer, when a team of 17 breast cancer survivors climbed 23,000-foot Mount Aconcagua in the Andes Mountains of South America. The climb becomes a metaphor for their survival and triumph.

Season 6

  • S06E01 What Darwin Never Saw

    • October 18, 1995
    • PBS

    Peter and Rosemary Grant document the process of natural selection among finches of the Galapagos Islands, occurring within a human lifetime.

  • S06E02 The Most Dangerous Science

    • November 29, 1995
    • PBS

    You'll experience one of the most dangerous forms of exploration when Bill Kurtis goes cave diving in the mysterious underwater caverns beneath the Yucatan called Nohoch Nah Chich.

  • S06E03 On a Wing and a Prayer

    • December 20, 1995
    • PBS

    Songbird populations have declined over recent decades due to pollution and habitat loss, as documented by this study of migration and nesting habits.

  • S06E04 The Mystery of Machu Picchu

    • January 24, 1996
    • PBS

    Follows a Peruvian expedition that offers new clues to the mystery of Machu Picchu, the famous lost city of the Incas.

  • S06E05 Atoms for Peace

    • February 28, 1996
    • PBS

    Viewers discover the amazing peaceful purposes of the mighty atom.

  • S06E06 The Critical Connection

    • March 20, 1996
    • PBS

    Showcases the efforts of the Rehabilitation Institute of Chicago medical scientists to improve the quality of life for patients with spinal cord injuries and the courage and stamina of those patients as they learn to accept their disability and function in society.

  • S06E07 Birth of a Jet Fighter

    • April 24, 1996
    • PBS

    Chronicles the work of engineers and test pilots as they develop a new Navy jet fighter and bring it to its first flight.

  • S06E08 Outsmarting the Brain

    • May 22, 1996
    • PBS

    Documents the phase I clinical trial of RMP-7 headed by Dr. Keith Black. The program follows three participants through the trial.

Season 7

  • S07E01 Manatees: Red Alert

    • October 30, 1996
    • PBS

    A scientific detective story to find out why 155 manatees mysteriously died in the spring of 1996, and to find ways to keep it from happening again.

  • S07E02 Mystery of the Ancient Ones

    • November 13, 1996
    • PBS

    Anthropoligists Drs. Jonathan Haas and Winifred Creamer present their finds from the 14-year study of the Anasazi ruins of northern Arizona supporting the theory that war was the contributing factor in the demise of the Anasazi, the ancient pueblo people.

  • S07E03 Slavery's Buried Past

    • December 18, 1996
    • PBS

    This show focuses on Michael Blakey, a Howard University biological anthropologist, as he does research on human skeletons found in an 18th Century slave graveyard uncovered in New York City in 1991.

  • S07E04 Doctors with X-Ray Vision

    • January 29, 1997
    • PBS

    Profiles the medical pioneers whose inventions make medical imaging possible. Follow their stories, from the origin of the X-ray at the turn of the century, to the development of the ultrasound during World War II, to the introduction of the CAT scan. Go inside a hospital radiology department to show how doctors use these tools today, and what they hope to see with them tomorrow.

  • S07E05 Walking Among the Sharks

    • March 5, 1997
    • PBS

    Reveals the diminishing number of sharks, looking for the reason through the scientific process to establish the problem, hypothesize a cause, gather data, and offer a solution.

  • S07E06 Searching for Shangri-La

    • April 16, 1997
    • PBS

    Bill Kurtis and The New Explorers travel to Nepal to find the real valley that inspired this legend. A look at the geology of the region reveals dramatic uplifts caused by the movements of tectonic plates.

  • S07E07 Why is Trinidad Drowning

    • May 21, 1997
    • PBS

    Why is the ocean around Trinidad rising? Is it a result of ice caps melting due to global warming? Or is the island sinking as a result of oil being pumped out from below ground?

  • S07E08 Taming the Wild Horses

    • June 11, 1997
    • PBS

    The problem of managing land with a large population of people and 35,000 wild mustangs is presented along with a horse whisperer, who explains the science that claims to tame wild horses so they can be adopted as riding horses.

Season 8

  • S08E01 The Miracle Dolphin

    • November 16, 1997
    • A&E

    The Bedouin village of Nuweiba Museine, on the Gulf of Aqaba, has an unusual resident. Holly, as she is known, is a bottlenose dolphin that has lived for several years in the shallow waters of the bay next to the village, and has adopted the villagers as her ""family,"" leaving her pod behind. This film tells the remarkable story of this unique interspecies relationship. Travel to the village to view Holly in her adopted habitat, and learn how she came to accept the villagers as her companions. Dr. Randy Wells, who has spent his career studying dolphins, explores the many incredible aspects of Holly's case, and reflects on why she may have chosen to live with humans instead of her own kind. See stunning footage of Holly being comforted by the villagers after the death of her calf that proves the power of the bond between the dolphin and her human "pod". Learn of the many new insights that Holly has provided into the behavior of these enigmatic animals

  • S08E02 Betrayal at Little Big Horn

    • January 8, 1998
    • A&E

    The story of Custer and the Little Big Horn is told using historical reenactments and commentary by historians, Native Americans, and others. Includes a discussion of newly discovered archaeological data from the battlefield site.

  • S08E03 Polluting the Fountain of Youth

    • March 5, 1998
    • A&E

    Bill Kurtis joins Jim Stevenson and other scientists concerned with rising nitrate levels flowing from underground into Florida's crystal clear Ichetucknee River as they trace the origin of the pollutants which are contaminating Florida's once pristine springs.

  • S08E04 Searching for the Origins of Life

    • April 9, 1998
    • A&E

    Scientists work to uncover the secrets of Yellowstone's thermal wonders including geysers and hot springs.

  • S08E05 Rescuing a River

    • April 23, 1998
    • A&E

    Visit the Paraguay River with scientists who are trying to save it from development of a 2,000 mile shipping highway. Many feel that if the project goes ahead, the area will dry out and the long term effects could be disastrous to the diversity of life on earth.

  • S08E06 Mystery of the Andes

    • May 21, 1998
    • A&E

    Follows paleontologist John Flynn as he leads an international team of geologists and naturalists high into the Andes Mountains to unravel a mystery. In rocks thought to be 100 million years old, Flynn found the fossilized remains of small mammals only 32 million years old. The discovery raises questions about the area's entire geologic history, as well as the planet's. If Flynn and his team can find evidence to undermine old theories, it may open up a window to a new and better understanding of the earth.

  • S08E07 Bringing UFO's Down to Earth

    • June 18, 1998
    • A&E

    It is said that every three seconds somewhere on Earth there is a sighting of an unidentified flying object. Host Bill Kurtis and his team head out to investigate two sighting reports - one on the edge of a rain forest in Brazil and the other in the town of Puebla, Mexico. Both believers and skeptics are interviewed before Kurtis draws his own conclusions.

  • S08E08 The Man Who Would Be Chief

    • July 30, 1998
    • A&E

    Bill Kurtis journeys to Ghana with Suli, who has made a life for himself in America, but has been called back to Ghana to become chief of his native tribe.

  • SPECIAL 0x3 The Search for Inca Gold

    • November 29, 1998

    Documents a treasure hunt expedition attempting to search for the Inca gold buried in the mountains of Ecuador.