24, 1992) Monster Make-Up; Ozone; Rearview Mirrors; Artificial Sweeteners (October 31, 1992) Oil Spill; Diet & Nutrition; Crystal Gayle; Caribou (November 7, 1992) Antarctic Journey; Antarctic Penguins; Palmer Station; Krill; Seals (November 14, 1992) AIDS; Glass Recycling; Science Challenge; Cement; Wolverine (November 21, 1992) Cockroaches; Broken Bones; Dentist Chair; Rhinoceros (November 28, 1992) Omnimax Technology; Archery; Lightbulb; Condors (December 5, 1992) Aurora Borealis; Air Pressure; Al Gore; Piranha (December 12, 1992) Traffic Control; Cryogenics; Static Electricity; Russian Kids (December 19, 1992) Blood Typing; Locks & Dams; Moles; Penguins (December 26, 1992) Diabetes; Galaxy Mapping; Dweezil Zappa; Ostrich (January 2, 1993) Season 11 (1993–1994) Rock Climbing; Taste Test; Monty Hall; Baby Bobcats (October 16, 1993) Emergency Rescue; Black Holes; Pizza; Reindeer (October 23, 1993) Memory; In Vitro Fertilization; Goose Bumps; Hummingbirds (October 30, 1993) Newspaper; Bomb Squad; Echoes; Mosquitoes (November 6, 1993) Jumbo Jets; Meteors; Knuckle Crack; Paper Recycling (November 13, 1993) Windsurfing; Permafrost; Tumbleweeds; Zebras (November 20, 1993) Spotted Owls; Carpal Tunnel; Foggy Mirrors; Lizards (November 27, 1993) Archaeology; Mazes; Dolphins (December 4, 1993) Firefighting; Dairy Farm; Inventors' Fair; Otters (December 11, 1993) Bison Roundup; Heart Attack; Dead Fingernails; Chile Peppers (December 18, 1993) The Bends; Compact Disc; Michael York; Wolves (December 25, 1993) Garbage; Infrared; Shelley Duvall; Polar Bears (January 1, 1994) Mt. Rushmore; Virtual Reality; Candles; Chimpanzees (January 8, 1994) Season 12 (1994–1995) Hang Gliding; Karate; Robin Leach; Elephant (October 15, 1994) Sled Dogs; Arctic Travel; Life In Camp; Arctic Weather (October 22, 1994) Aircraft Carrier; Brain; Carrier Life (October 29, 1994) Brain Mapping; Garlic; Sunscreens; Tasmanian Devil (November 5, 1994) Movie Dinosaurs; Bread Chemistry; Scott Hamilton; Wallaby (November 12, 1994) Movie Sound Effects; Sun; Globetrotters; Hedgehog (November 19, 1994) Dinosaur Extinction; Floods; Blue Seas; Siberian Tiger (November 26, 1994) Internet; Antibiotics; Panning For Gold; Taxidermy (December 3, 1994) Ethnobotany; Hubble Telescope; Inventors' Fair; Komodo Dragons (December 10, 1994) Raptor Hospital; Photography; Skipping Stones; Snakes (December 17, 1994) Redwoods; Electricity; Monuments; Red Fox (December 24, 1994) Printing Money; Gravity; Nature Labs (December 31, 1994) Bridges; Earthquakes; Chroma-Key; Grizzly Bear (January 7, 1995) Season 13 (1995–1996) Waterskiing; Reflexes; Escalator; Fat-Free Foods (October 14, 1995) Circus High Wire; Mummies; Bug Spray; Armadillo (October 21, 1995) Maya Bike Trek; Hearing; Parachutes; Owls (October 28, 1995) Balloon Safari; Grasslands; Maasai Mara; Mara Animals (November 4, 1995) Ice Surfing; DNA Fingerprinting; Bubble Gum; Cold Remedies (November 11, 1995) Aircraft Fire Rescue; Balloons; Knives;