47.8 MB (2.8 MB compressed)
3344 x 4995 pixels
28.2 x 42.2 cm ⏐ 11.1 x 16.6 in (300dpi)
MARTIN SHIELDS / SCIENCE PHOTO LIBRARY MARTIN SHIELDS / SCIENCE PHOTO LIBRARY
This Black-tailed Prairie Dog (Cynomys ludovicianus) is exhibiting predator vigilance behavior. The animals take turns in their colonies being the sentinel who watches for approaching predators. When scouting for predators the prairie dogs stand rigidly still and upright.
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