October 25, 2010 12:58 PM

Ice Age owl subspecies found in Yosemite

For years, scientists thought logging, mining and development drove North America's largest owl out of Northern California forests and into Yosemite National Park. Scientists are rethinking that assumption. Genetic research shows the owls in Yosemite are a subspecies, a subtly different version of the great gray owl in North America.

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