The San Francisco garter snake is the bay area’s most endangered species. The garter snake is protected, it’s prey, the red-legged tree frog is protected, and San Mateo county is trying hard not to let this beautiful snake fade into history. In 2001, when a San Francisco garter snake died during the construction of the San Francisco BART station, work stopped for 18 days, costing 1.07 million dollars while experts figured out a way to keep anymore from meeting the same fate.
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