gbEven more endangered than the elusive tree octopus, there are now less than 750 native greenback cutthroat living in the wild. The last pack of hanging-ons inhabits a remote, high-gradient stream that the conservation-focused Colorado Greenbacks organization is working to protect.

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Via the Greenbacks: "Through January of 2014 we're running an Indiegogo Project with an ambitious goal of raising $10,000 dollars to help us fund conservation related projects, and community outreach and education."

More info on the 1of750 campaign, here.