Study subjects (N = 5 food-enhanced and 75 wild-feeding male baboons), including feeding condition, age, maturation status, social rank, and canine length.

*Birthdate status indicates whether the birthdate is known or estimated, and what the error interval around the estimate is. 0 indicates an age known to within a few days; 1 indicates an estimate to within ± 1 year, 2 indicates within ± 2 years, and so on.** ‘Researcher’ indicates who measured the canines: JA: Jeanne Altmann, and JG: Jordi Galbany.Study subjects (N = 5 food-enhanced and 75 wild-feeding male baboons), including feeding condition, age, maturation status, social rank, and canine length.