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00:05:20
Every night at Fort Funston, after all the people and dogs have left for the day, the bats come out to play. Dr. Gary Fellers of the U.S. Geological Survey tells us about bat vocalizations, the audio recordings he uses to monitor their travels, and the various species of bats that frequent this Golden Gate National Park.

00:05:00
Geocaching is a high-tech treasure hunting game played throughout the world by adventure seekers equipped with GPS devices. The basic idea is to locate hidden containers, called geocaches, outdoors and then share your experiences online. We take a trip around San Francisco and examine what treasures are hidden in plain sight and talk to a few geocachers to find out what all this means.

00:04:07
Twenty-seven miles beyond the Golden Gate, the craggy Farallon Islands have been home to fur-seal hunters from Russia, a gold-rush-era egg business, and even a nuclear waste dump. Today they’re home to 250,000 sea birds, not to mention seals, sea lions, whales, and sharks. What makes these stark-looking islands so attractive to wildlife?

00:05:26
The ground under our San Franciscan feet is constantly on the move. Join Exploratorium educator Ken Finn as we visit some spots around town where exposed rocks reveal the tale of an active earth.

00:05:00
Join musician Karen Stackpole as she illuminates the science, history, and construction of gongs, tam-tams, and metallophones. In her studio, we learn how gongs are made by using heat, cold water, and a tempering process. Karen also discusses contemporary uses of gongs and some of her current work.

00:06:18
If you sink it, they will come. That’s what Exploratorium biologist Karen Kalumuck learned when she decided to experiment by submerging PVC plates under the piers at Marina Harbor. In this program, you'll meet the bizarre aquatic life forms that inhabit our Bay.

San Francisco's meteorological landscape is as unique as its social landscape. Tune in as we investigate why our city has many microclimates.