Now Playing:


Segments in this Episode

Oregon Field Guide

Sea Urchin Fishery/Northern Sea Lions

OPB | Feb. 1, 1991 7:30 p.m.

Biologists say sea urchin divers are having a big impact on the sea lions.

Oregon Field Guide

Balancing Rocks

OPB | Feb. 1, 1991 7:30 p.m.

Huge rocks balance on top of one another at a remote site near Madras.

Oregon Field Guide

Woodburn Peat Bog

OPB | Feb. 1, 1991 7:30 p.m.

A prehistoric marsh next to a high school could be the La Brea Tar Pits of Oregon.

Oregon Field Guide

Whale Tracking by Satellite

OPB | Feb. 1, 1991 7:30 p.m.

Satellite technology opens up huge new possibilities for tracking and studying whales.

Follow Oregon Field Guide

Send Oregon Field Guide A Message

Upcoming Broadcasts

Diving For Science (2411)

January 14, 8:30 p.m. [OPB TV]

All Season 2

Major Support Provided By: Dorothy D. Gage

Additional Support Provided By: the Coit Family Foundation, Fred and Clara Dolen Charitable Foundation, Kay Kitagawa and Andy Johnson-Laird, Christine and David Vernier, and the Greenfield/Hartline Habitat Conservation Fund of the Nature Conservancy.

Special thanks for support by: The Roundhouse Foundation, Jon and Nancy Decherd, Bonnie and Peter Reagan