The prairie dog caught in Trap 69 was angry. And who could blame her? After waking up in her burrow on a mid-September ...

Prairie dogs emerge from their burrow in a colony on American Prairie in Montana. Prairie dogs, once one of the most abundant animals on the prairie, now occupy 2% of their historic range.

Matchett dyes them blue because research shows prairie dogs are attracted to the color, and because the dye stains their feces, making it easy to estimate how many animals have consumed the pellets.