Fig. 3. (A) Resting metabolic rate versus body mass, (B) fat mass versus dry lean body mass, (C) pectoral muscle mass versus body mass and (D) mass of intestines versus body mass in the two food-restricted groups (FR and FR/AL nestlings). Dashed lines and squares denote FR nestlings, while dotted lines and triangles denote FR/AL young. The filled square in D denotes the outlying data point from the FR group (see Results).