The business would have been sustainable anywhere in Texas—for that matter, anywhere south of the Mason-Dixon Line and east of the Pecos. So he had the freedom to direct his operation toward areas where, according to the data coming from Dr. Rutledge’s lab, the pigs he was killing bore the strongest genetic resemblance to Snout. Generally speaking this seemed to be the watershed of the Brazos, south of Waco and north of where it meandered into the suburbs of Houston. Heat, he suspected, was driving hogs in general and Snout in particular toward rivers, where they could always find a way to cool off.