A race is on to raise numbers now that DNA sleuthing has confirmed that an isolated 750 or so greenback cutthroats in one 4-mile stretch of Bear Creek, west of Colorado Springs, are evolutionary last survivors.
Only they carry the genetic print of their ancestors. Faster breeding means federal authorities, when they complete a review, could deem greenback cutthroats "threatened" rather than "endangered."
For decades, Colorado wildlife officials boosted populations of other cutthroat trout species — in the mistaken belief that those were endangered greenback cutthroat.
http://www.tpfr.org
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