Dear colleagues, we are pleased to inform you of our recent publication in Behavioural Processes: Harvey, B. S., Dudzinski, K. M., & Kuczaj, S. A. (2017). Associations and the role of affiliative, agonistic, and socio-sexual behaviors among common bottlenose dolphins (Tursiops truncatus). *Behavioural Processes*, *135*. Little is known about the specific behavioral exchanges that occur on a day-to-day basis between dyads of common bottlenose dolphins (Tursiops truncatus). This study assesses the proportion of time dyads spend in proximity (within ∼2 m) and the proportion of time spent in affiliative, agonistic, or socio-sexual contexts within and between age/sex dolphin pairings to better understand their social relationships. Observations of bottlenose dolphins housed at the Roatan Institute of Marine Sciences provided 10.5 h of underwater footage from which to examine association coefficients and inter-individual interactions. These data suggest similar patterns to previous studies on bottlenose dolphins: mother-calf dyads shared the highest coefficients of association, followed by male-male, female-female, and male-female dyads. Four classes of association coefficients were defined for the population including low, medium, medium-high and high. This study is the first to quantitatively assess association patterns concurrently with affiliative, agonistic, and socio-sexual behaviors for bottlenose dolphins. The predominant relationships were affiliative. The paper can be accessed free of charge at https://authors.elsevier. com/a/1UJxc1LenM57rJ (until February 21st) or you may e-mail harveybn@eckerd.edu to request a copy. Sincerely, Briana Harvey Briana Harvey, M.A. Marine Mammal Behavior and Cognition Lab University of Southern Mississippi