Endangered Species
Ecological Services

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40 Years of Endangered Species in the National Wildlife Refuge System
Partner: U.S. Fish and Wildlife Service National Wildlife Refuge System
Produced by: U.S. Fish and WIldlife Service


Congress passed and President Richard M. Nixon signed the Endangered Species Act in December 1973. National wildlife refuges are home to more than 280 of the nation's 1,311 endangered or threatened species.

Last updated: November 25, 2013