返回信息流March 15, 2005
Bryce Canyon National Park, Utah
1998
Raymond Gehman
"Veteran researcher John Hoogland examines a young Utah male [prairie dog] at Bryce Canyon National Park. Hoogland dyes his subjects for identification. With 25 years in the field, the biologist was the first to document infanticide and cannibalism among prairie dogs."
桭rom "The Vanishing Prairie Dog," April 1998, National Geographic magazine
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国家地理每日一图 2005.03.15
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