Figure 3.

Body weight (top panels) and growth rate (bottom panels) for males (left) and females (right), as a function of age in weeks, for a sample of Gough Island mice (GI, green) and WSB mice (purple) raised in the lab. Individual body weight curves were lightly smoothed using cubic splines; the growth rate curves were estimated as the first derivative of the fitted splines. Thicker curves follow the group averages.