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Percentage of mature adult size achieved for head circumference (circles) and hindfoot length (squares), and percentage of adult performance achieved for feeding speed (triangles), at the ages of key life-history events: 0 (birth), 8 (den independence), 13 (weaning), 24 (sexual maturity) and 36 months. The percentages were calculated based on the values obtained from the growth curve for each trait at each age.
