Parts of Animals · Movement of Animals · Progression of Animals
Reading companion and full text of Aristotle's Parts of Animals, Movement of Animals, and Progression of Animals (Loeb Classical Library 323), translated by A. L. Peck and E. S. Forster — three of Aristotle's major biological treatises: the first an enquiry into the bodily parts of animals and the teleological principles that govern their design, the second a short but philosophically rich analysis of the causes of animal locomotion in general, and the third a systematic study of how different kinds of animals actually move.