RT Journal Article T1 Neanderthal coasteering and the first Portuguese hominin tracksites A1 Neto de Carvalho, Carlos A1 Cáceres Puro, Luis Miguel A1 Rodríguez Vidal, Joaquín A1 Finlayson, Clive AB Multiple sources of evidence for the systematic use of coastal ecosystems and resources by Neanderthals are known. Fossil hominin footprints offer direct portraits of individual or social group presence and locomotor behavior, and interspecific interactions, in the coastal ecospace. Here we describe the first two hominin tracksites found in the southwestern most region of Europe. At Monte Clérigo, dated to 78 ± 5 ka, trackways of three individuals demonstrate how Neanderthals navigated dune landscapes. These behaviors suggest route planning, with dune systems serving as advantageous settings for ambush hunting or stalking prey. A single footprint at Praia do Telheiro site, dated to 82 ± 5 ka, sustains the presence of Neanderthals in the dune ecosystem during Marine Isotope Stage (MIS) 5a. Network analysis provided dietary preferences and ecological interactions of Neanderthals in coastal areas. A review of the Neanderthal coastal sites associated with faunal evidence shows that their diet was primarily centered on cervids, horses and hares. The consistent presence of these mammal taxa highlights their role as reliable food sources, irrespective of the varying environments inhabited by Neanderthals. In addition, the Neanderthal diet also incorporated animals from neighboring littoral habitats, indicating a broad foraging strategy that capitalized on local biodiversity. PB Nature Research YR 2025 FD 2025 LK https://hdl.handle.net/10272/27518 UL https://hdl.handle.net/10272/27518 LA eng NO Carvalho, C. N. de, Cunha, P. P., Belo, J., Muñiz, F., Baucon, A., Cachão, M., Figueiredo, S., Buylaert, J.-P., Galán, J. M., Belaústegui, Z., Cáceres, L. M., Zhang, Y., Ferreira, C., Rodríguez-Vidal, J., Finlayson, S., Finlayson, G., & Finlayson, C. (2025). Neanderthal coasteering and the first Portuguese hominin tracksites. Scientific Reports, 15(1). https://doi.org/10.1038/s41598-025-06089-4 NO This work is supported by the Portuguese Fundação para a Ciência e Tecnologia, FCT, I.P./MCTES through national funds (PIDDAC): UID/50019/2025 and LA/P/0068/2020 (https://doi.org/10.54499/LA/P/0068/2020). Field work was partially supported by the Research Group RNM-293, University of Huelva & Junta de Andalucía. This work also received institutional support from the Naturtejo, E.I.M. and the Municipality of Idanha-a-Nova. DS Repositorio Institucional de la Universidad de Huelva RD 1 jun 2026