National Geographic Society írásai, fotói, munkái...
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G_ArchAngel #474 A nap képe:

Devils Tower National Monument, Wyoming
1997
Raymond Gehman
"Christened [prairie] dogs by settlers because of their high-pitched alarm calls, these members of the squirrel family live in burrows that can be 15 feet [4.6 meters] deep and more than a hundred feet [30 meters] long."
(Text from "The Vanishing Prairie Dog," April 1998, National Geographic magazine)
(Photograph shot on assignment for, but not published in, "The Vanishing Prairie Dog," April 1998, National Geographic magazine)