| http://www.w3.org/ns/prov#value | - The website, at www.fws.gov/endangered/ESA40, provides details on the history of the ESA and milestones achieved by this historical law, featuring such species as San Joaquin kit foxes, Higgins eye pearlymussels, black-footed ferrets, California condors, bald eagles and Chiricahua leopard frogs.
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