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Yellowstone National Park A coyote howling in a snow-covered landscape.
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Yellowstone National Park
S is for Snake
A rattlesnake perks up as if it were to strike.

 

 

The prairie rattlesnake is the only poisonous snake in Yellowstone. They are not very common so most people feel lucky if they see one. 

 

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Last Updated: July 10, 2007 at 16:13 MST