Black-tailed prairie dogs
Over the past century the grasslands of northern Mexico have been taken over by shrubby mesquite and turned to desert. Ecologist Gerardo Cellabos is on a mission to turn them back. Can he restore an entire prairie ecosystem? Cellabos hopes he can, with the help of an unlikely ally. Ari Daniel Shapiro reports from Chihuahua.
Image Credit: Arthur Chapman, Flickr: EOL Images. CC BY-NC-SA