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Yellowstone Winter Wonderland

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Long-tailed Weasel (Mustela frenata) in a rare moment of stillness.  These frenetic little predators are lightning quick and voracious.  Here the weasel takes a moment to identify or track its next victim.  The weasel has average eyesight, but acute hearing and sense of smell.  They will dive into the underground burrow of a sleeping rodent, dispatch the inhabitant, and take a brief nap after feeding.  Quite a house guest!
A Pause to Listen