A joint study conducted by the Universitat Autònoma de Barcelona, the University of Zaragoza and the University of Strasbourg on the remains of the Chaves and Puyascada caves, both located in the province of Huesca, Spain, yields the first direct proof of the consumption and processing of dairy products in the Pyrenees already at the start of the Neolithic period, approximately 7,500 years ago, as well as the consumption of pig.