Note that cHAP generations 0–11 correspond to HAP1 gen. 28–39 and HAP2 gen. 22–33. A. Mean ethanol intakes of female cHAP mice (asterisks), the selected descendents of a HAP1 X HAP2 cross, were higher than either line in some generations for gen. 0–11. B. Male cHAP mice did not drink as much female cHAP mice, but still exceeded both progenitor lines in 4 generations (1 = cHAP differs from HAP1, 2 = cHAP differs from HAP2, p < 0.00454).