Nigel Bean / Black tailed prairie dogs at burrow entrance{Cynomys ludovicianus} Colorado, USA
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Thomas Lazar / Black tailed prairie dog (Cynomys ludovicianus) alert female, Custer State Park, South Dakota, USA
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Shin Yoshino / Black-tailed Prairie Dog (Cynomys ludovicianus) pair touching noses for identification, Colorado
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Jim Brandenburg / Black-tailed Prairie Dog (Cynomys ludovicianus) trio at burrow entrance, South Dakota
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Yva Momatiuk & John Eastcott / Black-tailed Prairie Dog (Cynomys ludovicianus) eating grass in summer, Devil's Tower National Park, Wyoming
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Konrad Wothe / Black-tailed Prairie Dog (Cynomys ludovicianus) alert pair, North America
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Jim Brandenburg / Black-tailed Prairie Dog (Cynomys ludovicianus) town with animals near burrows, South Dakota
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Jim Brandenburg / Black-tailed Prairie Dog (Cynomys ludovicianus) barking while standing atop burrow, South Dakota
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Jim Brandenburg / Black-tailed Prairie Dog (Cynomys ludovicianus) pair nuzzling to communicate, South Dakota
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Jim Brandenburg / Black-tailed Prairie Dog (Cynomys ludovicianus) sitting at burrow entrance, South Dakota
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Jim Brandenburg / Black-tailed Prairie Dog (Cynomys ludovicianus) barking while standing on its hind feet and raising the head back, a behavior known as jump-yip calling, Wind Cave National Park, South Dakota
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Jim Brandenburg / Black-tailed Prairie Dog (Cynomys ludovicianus) pair nuzzling to communicate, South Dakota
