Last week, a brave band of ninety-two first year psychology undergrads faced wind and sunshine to observe primate behaviour at Howlett’s Animal Park. All this in the name of science! As part of the first year module of ‘Practicals in Psychology’ the students collected observational data in small groups. They recorded positive and negative social interactions in a variety of primates at the park. Previous research has shown that there is no simple relationship between group size, available space and social behaviours (de Waal, 1989; Hosey, 2005).