ナショナルジオグラフィックのインスタグラム(natgeo) - 4月14日 00時19分

@michaelnicknichols // In the early 20th century cougars and wolves were eliminated from Yellowstone. Now both have returned: cougars on their own, wolves reintroduced from Canada. Grizzlies never vanished, but there were times in the 1970s and '80s when the Greater Yellowstone Ecosystem held as few as perhaps 140 and the population seemed doomed, says Chris Serveen who coordinates grizzly recovery. Today 700 to 1000 live there, including THESE TWO HULKS TANGLING NEAR THE FIREHOLE RIVER.
What saved the grizzlies, says Servheen, was the vigilance of believers - and the federal protection that came when they were listed as a threatened species in 1975. The bears recovery has triggered a raging debate. Wolves have been taken off the list in Montana and Idaho. Should states be allowed to manage them and perhaps permit them to be hunted for trophies? -----> continue series @michaelnicknichols
Writing by Todd Wilkinson
YELLOWSTONE the battle for the american west
May 2016 National Geographic magazine

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