Black-tailed prairie dog Cynomys ludovicianus Location: National Zoo, Washington, DC Year: 1987 Merckslides catalogue number: 04-15974 Comments:

Black-tailed prairie dog Cynomys ludovicianus Location: National Zoo, Washington, DC Year: 1987 Merckslides catalogue number: 04-15975 Comments:

Black-tailed prairie dog Cynomys ludovicianus Location: National Zoo, Washington, DC Year: 1987 Merckslides catalogue number: 04-15976 Comments:

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