Radar chart representation of the behaviour of dog breeds: Border Collie (a), Miniature Schnauzer (b), Lagotto Romagnolo (c) and Staffordshire Bull Terrier (d). Colors represent the larger traits. Clockwise from top: blue – noise sensitivity, lime green – fear, violet – fear of surfaces and heights, orange – aggression, pine green – hyperactivity/inattention, purple – separation related behaviour, yellow – compulsive behaviour. Radar charts for other breeds in Supplementary Fig. S3. The minimum in all traits is the breed-wise minimum prevalence and the maximum in all traits is the breed-wise maximum prevalence. For the minimum and maximum prevalences, see Supplementary Table S7.