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Peregrine falcon
Bald eagle
Bison
Sheep
Reindeer
1 thousand years ago
10-12 thousand years ago
10 million years ago
12 million years ago
100 years
75 years
50 years
10-30 years
40-60 years
Conservation Era
Frontier Era
Environmental Era
Tribal Era
Muir
Pinchot
Leopold
Hoover
Muir
Pinchot
Leopold
Hoover
A silent spring
Pollution and People
Plan B 3.0
Ishmael
Herpetofauna
1964
1971
1954
Theodore Roosevelt
John Muir
Woodrow Wilson
Jane Adams
Conservation Collateral Company
Company Correlation Constant
Constant Cultural Cliche
Civilian Conservation Corps
100 years
50 years
20 years
12 years
Blackbeard
Dark Moon
Luther Standing Bear
Charles chikadee jang
Einstein
Alice Hamilton
Rachel Carson
Louis Pasteur