Male chimpanzee personality as a correlate of problem-solving success for which the rating was measured on a 7-point Likert scale. a The proportion of defenses that male chimpanzees successfully removed from the Pin-Release Puzzle (Methodical: r = 0.76, P = 0.006) and c Slide-Release Puzzle (Methodical: r = 0.64, P = 0.03; Openness: r = 0.64, P = 0.03; Dominance: r = 0.74, P 0.009). The length of time (seconds) that male chimpanzees spent actively interacting with the b Pin-Release Puzzle (Methodical: r = 0.78, P = 0.005) and d Slide-Release Puzzle (Methodical: r = 0.80, P = 0.003; Openness: r = 0.76, P = 0.007; Dominance: r = 0.81, P 0.003). Solid line a significant correlation. Dotted lines significant correlation that was nonsignificant after the false discovery rate control was applied