Portal:Mammals/Selected pictures/20
Appearance
![prairie dog](http://upload.wikimedia.org/wikipedia/commons/thumb/0/0d/Prairie_Dog_Washington_DC_1.jpg/300px-Prairie_Dog_Washington_DC_1.jpg)
A black-tailed prairie dog (Cynomys) at the National Zoo in Washington, D.C., looks out from a system of burrows, characteristically scanning the horizon. On average, these rodents grow to between 12 and 16 inches (30 and 40 cm) long, including their short tails.