52 4th Iberian Primatological Congress was carried out at the Fundació Mona with a sample of 15 chimpanzees (Pan troglodytes). Data were collected over 7 years (2007 to 2013). Behavioural (n = 20) and spatial data were recorded using a scan sampling technique. We measured: (1) spatial welfare indicators: weighted exploration index, core activity field and isolation field index; and (2) behavioural welfare indicators: rehabilitation index and resocialization index. Overall results indicate: (1) a significant correlation between behavioural and spatial welfare indexes; (2) changes over the years in spatial welfare indicators; (3) despite some fluctuations, an overall improvement of welfare based on spatial indicators. We conclude that including spatial information, in a longitudinal manner, is useful for understanding how captive primates improve their welfare and interact with their environments. Tooth wear in primates is caused primarily by dietary and aging factors and can influence reproduction and survival. However, there is limited information on the effect of ecology and feeding behaviour on tooth-use wear, making it necessary to analyse the variability between known diet species that occupy different ecological niches. We developed an approach using den-tine exposure of molar teeth in two in vivo African papionin species to test if habitat and diet affect age related tooth wear. Mandibular and maxillary tooth moulds (M1 and M2 teeth) were obtained by anaesthetizing the individuals and applying dental impression material in forest-dwelling mandrills (Mandrillus sphinx ; n = 38) from Gabon and savannah-living yellow baboons (Papio cynocephalus ; n = 95) from Kenya. Occlusal digital images were taken from positive high-resolution replicas and the percent of dentine exposure (PDE) recorded. Uni-and multivariate statistics (p < 0.05) were used to examine PDE interaction on age and sex. Results showed no sex related differences, nor any differences between captive-born and wild-born animals. Moreover, when tooth wear on age was compared, we found that mandrills exhibited significantly higher PDE than baboons in M1 and M2. Our findings confirm that tooth wear is a cumulative process and establish different tooth wear models among primates, which are directly related to diet and habitat. Although baboons ingest large quantities of underground storage organs with adhered abrasive grit particles, mandrills mainly feed on fruits that have hard shells and seeds. Furthermore , baboons live in an environment that has a higher proportion of extrinsic abrasive particles, such as quartz, which causes higher tooth wear rates.