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  The Endangered Species Preservation Act is passed, allowing the listing of native U.S. animal species as endangered and for limited protections.
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  U.S. Interior Secretary Stewart Udall announces the first list of endangered species including 77 mammals, birds, reptiles, amphibians and fish deemed threatened with extinction.
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  An expansion of the Endangered Species Preservation Act, prohibiting importation of protected species from foreign countries.
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  80 nations sign the Convention on International Trade in Endangered Species Treaty
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  President Nixon signs the Endangered Species act into law
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  The Tecopa pupfish is the first listed species to go extinct.
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  The brown pelican is the first species to be delisted due to recovery
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  The Amur leopard is listed as critically endangered, with only 20 left in the wild.
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  Bald eagles are removed from the Endangered Species list because of recovery
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  The Cooperative Endangered Species Conservation Fund receives $7.5 million in grant funding.
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  The FWS has listed over 2,000 species worldwide as endangered or threatened,
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  Federal judges decide to put the Great Lake wolf population back on the endangered species list, banning wolf hunting in that area
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  The Senate introduces a bill that blocks federal funding for the endangered Mexican gray wolf under the ESA and limits recovery.
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  The senate held a hearing to "modernize the Endangered Species Act” with much criticism of the law's "encroaching on states rights.
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  Trumps budget proposal cuts funding for the Environmental Protection Agency (EPA) by 30 percent