FIG. 4. — A in Aristotle on the anatomy of the heart and lungs (HA 1.17): new insights from a multidisciplinary approach

FIG. 4. — A, Lateral view of the left lung of a dog. The organ is deep red in colour, as the animal has not been exsanguinated with the modern-day technique applied in slaughterhouses; B, lateral view of the lung of a pig in a slaughterhouse. The pale pink colour is a result of exsanguination, applied as part of the slaughterhouse method. Notice a lesion compatible with Enzootic Pneumonia in the middle lobe of the lung (white circle) and the heart behind it. Credits: A, image taken and modified from Singh 2018: 201; B, image taken and modified from Bonicelli et al. 2021.