This paper explores the potential of combining different isotope systems from different tissues to improve resolution when reconstructing breastfeeding and weaning practices (BWP) in archaeology. Additionally, we tested whether changes in diet can be detected in deciduous teeth. Rib collagen samples from 22 infants/children from the archaeological site of Bacuranao I (Mayabeque, Cuba) were processed for nitrogen (δ15N) and carbon (δ13Cco) stable isotopes and assessed using a Bayesian model (WARN). In addition, enamel of 48 teeth from 30 infants/children were analyzed for oxygen (δ18Oen) and carbon (δ13Cen) stable isotopes. Data revealed that the timing of weaning cannot be characterized precisely by analyzing either δ18O or δ15N. While a depletion in both δ15N and δ13Cco is only evident after one year, the WARN model suggested that the weaning process started at around 3 months and ended around 1.7 years. Most teeth were enriched in δ18Oen compared to deciduous incisors, suggesting a breastfeeding signal. However, a high variability in δ18O was found between similar teeth from the same individuals. Higher enrichment in δ18Oen, and variability, was observed in tissues formed during the first six months of life. A δ13C enrichment of 1.0‰ was observed among deciduous teeth and ribs. While most individuals enriched in δ15N showed enrichment in δ13C, the δ18O values were more variable. Our data suggests that stable isotopes of deciduous teeth, especially δ13Cen, can be used to detect changes in diet during the weaning process. It is also possible that the δ18O enrichment observed in M1 is influenced by the effects of cooking techniques on weaning foods. The combination of multiple isotope systems and tissues overcome some of the limitations posed by single tissue approaches.

The development of digital technologies and the use of advanced photogrammetry programs for modeling archaeological excavations and sites have opened new possibilities for spatial analysis in archaeology and the reconstruction of archaeological contexts. In addition, these tools allow us to visually preserve the features of archaeological sites for future use and facilitate the dissemination of archaeological heritage to local communities and the general public. This paper summarizes 3D photographic visualization of three cave art sites (Los Cayucos and Cueva No. 1 in Punta del Este, Cuba, and José María Cave in the Dominican Republic) and two burial spaces (Canímar Abajo and Playa del Mango, Cuba) using photogrammetry software. The application of these novel methods at the cave art sites allowed us to visualize faint pictographs that were invisible to the naked eye, to better define the shapes of petroglyphs and to reconstruct the position of lost/removed panels. At the burial sites, 3D modeling allowed us to register the archaeological context with greater precision. The use of 3D modeling will improve spatial analysis and data safeguarding in Cuban archaeology. Moreover, 3D movies are an effective way to disseminate knowledge and connect local communities with their cultural heritage, while reducing the impact of public visits to remote or endangered sites.