Echoes to Bugles: Stories of Colorado Mammals examines the natural history of 24 mammals treated as 12 pairs of two very different but very connected animals. Each month features a different pair and presents both the details of their separate lives as individuals and of their inseparable lives as predator and prey. December 9 - Moving as a Chess Match To get from where it sleeps to where it eats, a Bobcat has to move; so does the Mountain Cottontail, its prey. But movement attracts attention. A bobcat seen is a Bobcat avoided; a Cottontail seen is a Cottontail caught. For both Bobcat and Cottontail, the interaction of predator and prey is a chess match of moving and not moving.