Ignacio de la Torre, Luc Doyon, Alfonso Benito-Calvo, Rafael Mora, Ipyana Mwakyoma, Jackson K. Njau, Renata F. Peters, Angeliki Theodoropoulou, Francesco d’Errico. "Systematic bone tool production at 1.5 million years ago." Nature, 2025. doi:10.1038/s41586-025-08652-5