Fig 1. Body condition of adult beavers increased continuously with age.

The relationship between age and body weight (controlling for body length and time of year) of beavers ≥ 3 years old where exact age is known (A), or only minimum age is known (B). Lines represent predictions (thick lines) and their 95% prediction intervals (PIs, thin lines) averaged from the top set of LMM models. Points depict raw data. Ages 13–16 were combined. Data pertaining to males are coloured blue and females red.