A ground squirrel in Wisconsin.
A domestic rat at the George M. Sutton Avian Research Center.
Domestic rats (Rattus norvegicus) at the Sutton Avian Research Center.
A flower’s gerbil (Gerbillus floweri) at the Omaha Zoo.
Fat tailed gerbil (Pachyuromys duprasi) at the Omaha Zoo.
A pocket mouse (Chaetodipus sp.) at the Omaha Zoo.
Four-striped grass mouse (Rhabdomys pumilio) at the Omaha Zoo.
Northern grasshopper mouse (Onychomys leucogaster) at the Omaha Zoo.
An old world harvest mouse (Micromys minutus) at the Omaha Zoo.
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