S10 E1 • Missoula Floods

Première diffusion : 3 septembre 2009

S10 E2 • Adaptive Skiing, Tillamook Off-Road-Vehicles, Mt. Bailey Sno-cat Skiing

Première diffusion : 1 février 1999

S10 E3 • Silver Falls State Park, Rodeo Livestock, Dungeness Crab

Rodeo horses and bulls are athletes in their own right. Scientists monitor and study the life cycle of the Dungeness crab.

Première diffusion : 1 février 1999

S10 E4 • Vernal Pools, Native Oysters, Solar Energy

S10 E5 • Feral Pigeons, Warner Wetlands, Wood Ducks

S10 E6 • Mountain Goats, Bee Mites, Clamming

S10 E7 • Caspian Terns, Bear Creek, Williams Prairie

S10 E8 • Western Bluebird, Fort Rock Archaeology, Global Positioning Systems

S10 E9 • Rock Art Photography, Lynx Study, Outrigger Canoes

S10 E10 • Martens, Radar Archaeology, The Oregon Garden

S10 E11 • Sea Lion Study, Elk Rock in Willamette River, Sewage Ponds of Portland

S10 E12 • Axial Volcano, Pelagic Bird Watch, Osprey Migration

S10 E13 • Wild Horse Trainer, Biological Control of Weeds, City Walks