Title : 1 The relationship between cancer progression and social environment in Drosophila 2 3 Authors / Affiliation : 4

How was the significant deviation from random choice tested? Please state what statistical test was used. Deviation from random choice was tested using a binomial test (comparing the number of events a focal fly was observed on a specific cage (stimulus cancerous flies for the dual experiment, social cage for the aversion/attraction experiment) and the total number of landings on a cage). This is mentioned in the figure legends and L466-468.