What's Up Doc?

There seems to be thousands of these critters living in the grasslands in large colonies. They appear to be playful and curious but still retain a degree of nervousness. They are of genus Cynomys, and commonly called Prairie Dogs. A long lens would allow you to pick up some of their intimate interactions without spooking them.

1/1250 f/8 ISO 200 75.0-300.0 mm @ 300 mm Canon EOS DIGITAL REBEL
Badlands,Badlands,South Dakota